Kusunoki's Flunking Her High School Glow-Up Vol. 4 (Kodansha, 2025)

Keisuke Shizuki's summer break is putting his pretty-girl-phobia to the test! While he tries to have a chill summer working in his uncle's store, two beautiful but completely different girls have entered…or re-entered…his life. On the one hand is socially awkward Shizuka Kusunoki, who just wants his help doing normal things like making friends and going to the beach. On the other hand is cold but flirty Ririsa Hebikawa…the girl whose cruelty to him in elementary school made Keisuke renounce love altogether. And now, Hebikawa has finally recognized Keisuke as the nerd she used to tease… Swimsuits come on and secrets come out as Keisuke realizes his true feelings!