Shishunki: Sore wa Amaku Itai Koto

Spring: I met you

Summer: I started to love you

Autumn: I embraced you

And then after we spent winter together

Our “first love” finally end up.

Shishunki: Sore wa Amaku Itai Koto (思春期 ～それはあまく痛いコト。～)
Waru Iko to Shite Ii desu ka? (ワルいことしていいですか？)
Tsunagare Gokko (つながれごっこ)
Yuuwaku Kiken Chitai (誘惑危険地帯)