Top 10 Redemption Arcs of Visual Novel Characters.

[ztrepzilius]

I'm looking for example of characters regret being a bad person or committing a disastrous deed. They decided to spend rest of their life atoning their sins.

Edited January 14, 2021 by ztrepzilius

[Dreamysyu]

Ame no Marginal. The MC commits a disastrous sin of speaking!!!

[Silvz]

U-MI-NE-KO

 

[Clephas]

Shugotate (secret heroine) 

Karenai Sekai to Owaru Hana (atonement and salvation of others at cost to one's self is the focus of the main path)

Ikusa Megami Zero- 

Spoiler

After the turning point, survival and atonement become Celica's focus until the point where he is broken.

Floral Flowlove- Protagonist sees no worth in himself and believes the only way he can be worthy of the man who saved his life is to protect the main heroine without seeking anything in return.

Ou no Mimi ni wa Todokanai-  Protagonist protects the village in atonement for his friend dying as a result of his mission.

Tokyo Babel-

Spoiler

Setsuna sells himself to Lilith in hopes of atoning for speaking the words that killed a world.

 

[Zalor]

13 hours ago, ztrepzilius said:

I'm looking for example of characters regret being a bad person or committing a disastrous deed. They decided to spend rest of their life atoning their sins.

A VN isn't coming immediately to mind other than Umineko, which @Silvz already recommended.

If you don't mind reading a manga or watching an anime, Monster by Naoki Urasawa might be just what you are looking for. The main character goes on a huge quest after discovering that a boy whose life he saved years ago grew up to be a serial killer. There is also a character later on in the series who was responsible for several tragedies, but who retires from public life and is living the remainder of his life in guilt of what he's done. Both the anime and manga of Monster are excellent, so you can't go wrong with either. 

[Clephas]

If we are adding in anime, then Noir is my suggestion.