Kimi, Shioreru Koto Nakare

Kaoru, who has no boyfriend nor family, quietly runs a bonsai shop alone in an old house inherited from his grandparents. There he meets a young man in a flashy suit named Riichi. Riichi visits Kaoru every day to enthusiastically gaze upon a withered camellia bonsai that holds a special meaning for Koaru. One day, Riichi collapses from overwork and Kaoru takes care of him. Riichi then becomes attached to Kaoru and begins to visit frequently. Kaoru enjoys spending time with Riichi, but when he realizes he's gradually being drawn to him, a certain anxiety begins... A healing love story between a friendly younger man and a bonsai master with a secret!

(Source: eBookJapan, translated)