Don't Toy with Me, Miss Nagatoro 3
From the Penguin Random House website:
“Nagatoro teases Senpai to no end, yet she can’t stay away from him. Senpai gets embarrassed by Nagatoro, yet he can’t stop thinking of her when they’re apart. After having fun at the beach and playing video games at Nagatoro’s, the two only get closer and closer…”