In Japan, summer is the peak season for scares! Rooted in the Obon festival and the cultural tradition of suzumi, sharing spine-chilling ghost stories to literally "cool down" from the sweltering humidity, horror and summer go hand-in-hand. Start your descent into fear with 30% Coin Back on Volumes 1 through 3, and keep the nightmares coming with 25% Coin Back on all subsequent volumes of participating series!

Ends September 18, 2026 at 11:59 PM PDT

Twin sisters, Arisa and Tsubasa, are separated by their parents' divorce. The twins secretly exchange letters during their separation. Finally reunited after three years, Arisa asks Tsubasa to pretend to be her and spend a day in her school just for fun. At school everyone seems very nice to Tsubasa (who is pretending to be Arisa) and everything seemed normal... until she finds a strange note in her sister's shoe locker. When Tsubasa hands over the letter to Arisa, Arisa tries to kill herself. Arisa survives but remains in a coma. The letter read, ""Arisa is a traitor."" Determined to unravel the mystery behind the act and the letter, Tsubasa decides to investigate...