I Want to Drown in Tsubaki’s Heat

"Sakura-san, can I touch you?" Although I decided that I would never fall in love again... I'm about to fall in love with a younger boy.
Sakura, an office worker who cherishes her daily routine, is chosen as an instructor for Tsubaki, a college student who works part-time. However, because of "that reason", Sakura overreacts whenever Tsubaki gets closer to her. Moreover, Tsubaki suggested to her, "Would you like to practice with me?" !? It was just a practice, but every time he touched her and called her name, sparks danced deep inside her body. And before she knows it, Sakura also has become serious...