微笑みをもういちど ～smile again～

In the little time he has left, he works tirelessly to nurture his friendships and express his feelings. Along the way, new encounters spark new emotions.
The protagonist’s actions will drastically change the futures of the girls around him. Whether those actions were right or wrong, no one can say for sure.

And so, with a heart full of mixed emotions, the protagonist leaves Japan…

--Adult Arc
Five years later, the protagonist returns to his hometown as a lecturer at his alma mater. He reunites with his old friends, who have all taken different paths in life.

Now adults, they each carry burdens and struggles that they can’t share with others. The passage of time has also created a wall between the protagonist and his friends.
Amidst this, the protagonist strives to rebuild his connections with them and find love once more.

The story captures the joys, sorrows, regrets, and setbacks of youth—and the resilience it takes to move forward in life.

[Translated from dlsite]