Warikiri

Exhausted with his workload at the office, Shu shops around for partners on a dating app, looking for a strictly physical relationship―no idle chit-chat, and no strings attached. Meanwhile, Yukiya is a high school student who can't understand his discomfort when considering dating girls and decides to see how things go with men. They'd expected it to be a one-night stand. Still, they're surprised by their compatibility and end up being friends with benefits.

It was supposed to be strictly physical, but the more they see each other, the deeper their feelings for each other become! Then, one day, they run into each other in town!!

(Source: Renta!)