The angels got to live with their master once again along with other four angels, Momo, Yuki, Midori, and Lulu.
They all started cleaning and redecorating the apartment while their master was away at a part-time job.
The girls decide to pick up Gorō after his part-time job. When he sees the girls, he notices that they are dirty and decides to take them all to a bathhouse to wash up.
いよいよ始まった、12人の守護天使たちと悟郎の共同生活。
あまりに殺風景な部屋の様子を見て、悟郎の留守の間に守護天使たちは模様替えをしてしまう。
部屋の変貌ぶりに驚きつつも、彼女たちを大切に想う気持ちが一層強くなる悟郎。
彼の奏でるハーモニカの音色は、守護天使たちと悟郎の絆をより強くするのだった。