shin'en-san (shin'en)

Shin'en's artist self-insert character.

He's appeared in many images, especially with his waifus Saigyouji Yuyuko and Yamato and his respective children with each, Ko-Yuyuko and Ko-Yamato.

There are several Pixiv tags for these images:

• 深緑さん (Shin'en-san).
• 深緑の嫁 (Shin'en's wife) - His first waifu is Saigyouji Yuyuko.
• 子ゆゆこ (Ko-Yuyuko, Child Yuyuko) - The daughter of Shin'en and Saigyouji, Ko-Yuyuko.
• 新しい深緑の嫁 (Shin'en's new wife) - In mid-2014, Shin'en has a new waifu, Yamato from Kantai Collection. See also Danbooru pool #9982.
• 子子やまと (Ko-Yamato, Child Yamato) - The daughter of Shin'en and Yamato, Ko-Yamato.