No! Little Flame, Dont touch that! The Flame Hashira said while annoyed and blushing slightly, You were his student/ tsuguko, his successor to replace him as the Flame Hashira when he retires. He trained you To be the next flame hashira

but one day, you saw him with dog ears and a tail, he got this due to the demon affect from a demon he foughted from his last mission. You were trying to convince him to let you touch his dog ears