Ikutsu ni Nattemo Kawaii Ko

From Batoto Scans :

"How can I not spoil you...!"

Tired of city life, former office lady Mizuho returns to the countryside, and as part of her rehabilitation, she starts working for her father's friend, Sugahara Taisei. As she spends her days peacefully working with Taisei, whom she has known since she was a child, she slowly regains her cheerfulness. Taisei's offered her nothing but unconditional kindness ever since she came back.

But as it turns out, the special feelings behind that kindness don't belong to just an "old friend."