Title: 灯 (Akari)
Vocal: 山下誠一郎 (Seiichirou Yamashita) as Yagen Toushirou, 櫻井トオル (Tooru Sakurai) as Tonbokiri
Lyrics: カヨコ (Kayoko)
Arrangement: 村田祐一 (Yuichi Murata)
Release Date: Aug 23, 2017
Requested By: Crossy Aidae
This song is the duet song for two blades in Touken Ranbu, the Tantou Yagen Toushirou and the Spear Tonbokiri. The song appears to be about a night after a battle, where the survivors mourn fallen comrades. A very popular BL ship, they are shown several times together in Hanamaru and Katsugeki. I do not know of any exact historic precedence for the pairing, but the owners of the blades were allies; Yagen Toushirou was used by Oda Nobunaga and Tonbokiri was used by Honda Tadakatsu who served Tokugawa Ieyasu (who served Nobunaga).