Name and source?

This is a character called Tone from Kantai Collection, a Japanese game that personifies World War II warships as teenage girls and young women.

This is fanart created by ruton-niki

Proof:
https://kancolle.fandom.com/wiki/Tone
https://ja.gelbooru.com/index.php?page=post&s=view&id=2788790&tags=tone_kai_ni_%28kancolle%29

More art by ruton-niki:
https://ja.gelbooru.com/index.php?page=post&s=list&tags=ruton-niki

More art of Tone:
https://ja.gelbooru.com/index.php?page=post&s=list&tags=tone_%28kancolle%29

This is a character called Tone from Kantai Collection, a Japanese game that personifies World War II warships as teenage girls and young women.

This is fanart created by ruton-niki

Proof:
https://kancolle.fandom.com/wiki/Tone
https://ja.gelbooru.com/index.php?page=post&s=view&id=2788790&tags=tone_kai_ni_%28kancolle%29

More art by ruton-niki:
https://ja.gelbooru.com/index.php?page=post&s=list&tags=ruton-niki

More art of Tone:
https://ja.gelbooru.com/index.php?page=post&s=list&tags=tone_%28kancolle%29