It is a sequel to Hiwatari's previous work, Please Save My Earth, and features the two focus characters of that series, Alice Sakaguchi (now Kobayashi) and Rin Kobayashi.
Hikari | Kōjō no Tsuki | Hikari (train) | Kimi to Boku | Izayoi No Tsuki | Izayoi no Tsuki | Inu x Boku SS | Akai Tsuki |