Himitsu no Hodaka-kun wa Amai Nioi ga Suru

Hodaka is a shy and lonely sweets-loving guy, and his secret hobby is making sweets. One day while he was eating his home-made madeleines while viewing flowers, he found his company's idol Yamana collapsed at his door. Not knowing what to do, he gave him some water and madeleines. Yamana loved the madelaines Hodaka made so much that he started bothering him at the office the very next day. Hodaka, who started to feel cornered decided to invite Yamana to his house and...!?

(Source: Kodansha, translated)