Wasuremono

From Attractive Fascinante:
ch 1-2) A return flower
Masatsugu, a calligraphy sensei, liked his student, Sumiya, for a very long time. His feelings got stronger and he started to avoid eye contact with Sumiya. Sumiya sensed Masatsugu’s awkwardness and confronted him. They eventually did it and Sumiya didn’t look for Masatsugu anymore after that. Then one day, Masatsugu came home to find Sumiya at his doorstep…
ch 3) Next Door
ch 4) Let’s try it
ch 5) Lost Article
extra) Have you got everything?