Tsubame Kochou is a side character in the non-yuri series Touka Gettan. The leader of the the demon sisters that head the society in opposition to the Lotus Association known as the Butterfly Triplets. She can transform into a butterfly and she usually openly display her demon powers. For a certain duration of the series, the Butterfly Triplets had an interest in publishing yaoi dōjinshi featuring Tōka.
- The girl the Butterfly Triplets captured during the "Beautiful Girl Imprisonment Incident" was Yūrika. They just can't wait to play with their doll dressing her up in various outfits. Tsubame herself dressed her in cosplay outfit which is to strip her without any clothes.
- At first sight before the "Beautiful Girl Imprisonment Incident" she founds laying Yūrika to be cute, she wants her along with her twin sisters so they captured her, starting with the order to strip, it was the beginning of entertaining changing costume play with a bunny outfit.
- To give Yūrika the proof of her belonging to the Butterfly Triplets she dressed her up in a special attire, to continue to play with her regarding that they're her onee-samas.
- The Butterfly Triplets played with Yūrika using ticklish movements with sticks to puke Yūrika's back while she was wearing a bunny outfit, since in that place they won't get interrupted by anything.
- Tying naked Yūrika with pink ribbons was an interesting activity for Butterfly Triplets at Christmas.