Kaguya-sama: Love Is War - Vol. 20 Ch. 194 - Valentine's at Shuchiin, Part 1

[MangaDex]

 

[EirikrInnMyrkr]

Giving off-brand KitKats to someone would be staunchly in the "Friend Chocolate" territory no matter what the box says.

 

[Maxamo]

Which chapter did kaguya give him chocolate. I sent remember.