Hondō and Kurosu stand in the café wearing striped shirts and ties.

A collaboration café based on the manga *Today, I’m Being Pressured to Make a Pact Again at a Delinquent High School with a Brotherhood System* by Red Shirafu is being held.

The venue is Charum Cafe in Ikebukuro. The event runs from September 30 to October 12, 2026.

Newly drawn illustrations have been created specifically for this event, and the collaboration menu features a total of 10 items. For every item ordered, customers will receive one random bonus coaster (8 varieties total).

Character panel seating, where guests can enjoy their meal alongside the characters, will also be available.

Ticket sales will begin on August 31, 2026, at 5:00 PM.

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“At a Delinquent High School with a Sibling System, I’m Being Pressured to Make a Pledge Again Today” Collaboration Cafe Confirmed!

A collaboration cafe based on the manga “At a Delinquent High School with a Sibling System, I’m Being Pressured to Make a Pledge Again Today” by Akai Shirafu will be held.

The venue is Charum Cafe on the 4th floor of Marubiru in Ikebukuro, Tokyo. The event will run from September 30 to October 12, 2026.

Newly drawn illustrations created specifically for this event will be on display. In addition to offering collaboration menu items, the venue will sell new merchandise featuring these illustrations and distribute various special gifts.

Furthermore, character panel seats will be available where guests can enjoy their meals alongside the characters.

The collaboration menu features a total of 10 items

The collaboration menu consists of 4 drinks and 6 food items, for a total of 10 items. Each item is named after a reference from the series.

The menu will be available throughout the entire period, from September 30, 2026, through October 12.

Drinks (4 varieties)

All four drinks are 820 yen (tax included). In the menu photos, all drinks are shown with character-illustrated drink tags attached, and the description states, “Comes with a drink tag!”

Food (6 items total)

Food items range in price from 990 yen to 1,500 yen. The menu consists of four savory dishes and two desserts, and it’s noteworthy that both the drinks and food items bear the title “From the hotel where the two of them stayed.”

Order a collaboration menu item to receive one random coaster (out of 8 total); make a reservation in advance to receive a placemat

During the event period, for every collaboration menu item ordered, you’ll receive one random coaster (out of 8 total) as a gift.

If you purchase an advance reservation ticket and visit the cafe, you’ll receive one special placemat (1 design available) per person.

Please note that the advance reservation bonus is only available to customers who use the collaboration cafe during the time slot they reserved. You will not be able to receive the bonus if you present your reservation ticket for a different time slot.

There are two types of tickets, on sale starting August 31 at 5:00 PM

There are two types of tickets, categorized by seat type. They will be sold on a first-come, first-served basis via the SelectType reservation site.

The meal coupon is worth 300 yen (tax included) and can be used for food and drinks on the day of the event. This effectively means you get a portion of the ticket price back.

Please note that character panels are not included with standard seats.

Once purchased, tickets are non-refundable, non-cancellable, and cannot be rescheduled; transfer or resale is also prohibited. Since there is no waitlist, you must carefully confirm the date and time before purchasing.

Preschool-aged children may attend only if seated on an adult’s lap and will not be counted toward the total number of attendees. If a seat is required, you must purchase a ticket for each person.

Tickets can be purchased from the SelectType reservation site .

Sessions are 90 minutes long with a rotation system; same-day admission is available

Only if seats are available, walk-ins are accepted on the day of your visit. You must arrive at the café at least 10 minutes before the start of the time slot you wish to use.

However, if you enter on the day of your visit and use a character panel seat, a seat fee of 200 yen (tax included) per person will apply. There is no seat fee for regular seats.

Same-day entry does not include any pre-reservation benefits. Seat availability can be checked on the café’s official X account.

Photography inside the café is permitted, but video recording, audio recording, and filming are prohibited. Guests are also asked to refrain from visiting in cosplay or attire that could be perceived as cosplay.

Merchandise, OSMO Stamps, and Other Details Not Yet Announced

As of this writing, the following four items are listed as “Coming Soon” and have not yet been revealed.

・Merchandise (new items featuring original illustrations)
・OSMO Stamps
・Purchase Bonuses
・Character Panel Seat Exclusive Gift Campaign

The official announcement states that “details regarding merchandise and other information will be released at a later date,” so we will have to wait for further updates.

The collaboration café opens on September 30!

Frequently Asked Questions About the “At a Delinquent School with a Brotherhood System, I’m Being Pressured to Make a Pledge Again Today” Collaboration Café

When and where will it be held?

It will be held from September 30 to October 12, 2026.

The venue is Charum Cafe on the 4th floor of Marubiru in Ikebukuro, Tokyo.

Is a reservation required?

Walk-ins are accepted if seats are available, but purchasing an advance reservation ticket is recommended.

Tickets will be sold on a first-come, first-served basis via the SelectType reservation site from 5:00 PM on August 31, 2026, until 11:45 PM on the day before each event date.

How much do the tickets cost?

Character panel seats are 600 yen (tax included) per person, and regular seats are 400 yen (tax included) per person.

Both ticket types include one placemat and a 300-yen (tax included) food and beverage coupon valid for use on the day of your visit.

How many items are on the collaboration menu?

There are 10 items in total: 4 drinks (820 yen each, tax included) and 6 food items (ranging from 990 yen to 1,500 yen, tax included).

For every item ordered, you’ll receive one random special coaster (8 varieties total) as a gift.

Are there any time restrictions?

Each session is 90 minutes with a rotation system.

The restaurant operates in five time slots from 11:30 AM to 9:00 PM, with last orders accepted one hour after the start of each slot.

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Please check the official website for details.
*Please note that the information in this article may be out of date. We apologize for the inconvenience, but please check the official website for the latest details.

© Akai Shirafu (Akita Shoten) 2020