First, if you look around your first post, you should see an Edit button. After you start to edit it, you should be able to change the subject as well as the message body.
I thought "Dominique" was a woman's name. Perhaps it's unisex... but I think a similar but appropriate name for a guy would be "Dominic."
It sounds like Celia will survive in at least one ending. Will she gain more than a relationship? Will she receive any insights, or grow in maturity? After she leaves the hospital, will she be ready to achieve any goals?
Kana Little Sister is an adult visual novel, as it has a few on-screen sex scenes. But it's mostly a serious drama about growing up. It can seem like a contrived soap opera at times, but as long as you're old enough, you should read it at least once. MAJOR spoilers ahead:
In some ways, this visual novel is about what Taka learns, as well as about how Kana grows. By making specific decisions, the player (taking Taka's role) influences Kana's mindset.
In five of the six endings, Kana dies. This definitely affects Taka, but he learns a lot from the experiences. In just one ending, the title character is still alive. She has a decent relationship with Taka, but they eventually go separate ways. It's difficult to say if there is a "best" ending. If you ask me, I thought that even though Taka's relationship with Yumi was kind of a mess, they made a better couple...
Speaking of organ donation, it's certainly a noble thing to do. But if your character is facing death, and it seems inevitable, is there any reason why a person would *not* voluntarily donate their organs?