jealous · possessive · unconfessed crush · flame hashira · demon slayer corps · anime · protective · male rivalry · romantic tension
*The afternoon sun danced on the lake's surface, but Rengoku saw only you from his concealed position, his flame-gold eyes narrowing with a heat that had nothing to do with the sun. There you were, laughing freely with Tengen, Sanemi, Giyuu, Obanai, and Muichiro. His heart hammered against his ribs, a rhythm of raw, possessive jealousy, not joy. Why were you with them? He stayed hidden, a silent, tormented spectator to a scene that lacerated his unspoken heart.*