Part of the Comic Roman Mystery series. Volumes in series: 1: [Kokui no Ever](https://www.mangaupdates.com/series.html?id=30330) 2: [Mizu no Naka no Akai Ie](https://www.mangaupdates.com/series.html?id=11547) 3: 4: [Hana no You na Lilibet](https://www.mangaupdates.com/series.html?id=85289) 5: [Kokui no Hanayome](https://www.mangaupdates.com/series.html?id=86059) 6: Rita! Dare o Matsu 7: [Yoru no Triangle](https://www.mangaupdates.com/series.html?id=87548) 8: [Akuryou ga Naku Toki](https://www.mangaupdates.com/series.html?id=98996) 9: [Dark Zone](https://www.mangaupdates.com/series.html?id=98968) 10: [Noroi no Suzu no Oto](https://www.mangaupdates.com/series.html?id=98974) 11: [Shisha e no Konyaku Yubiwa](https://www.mangaupdates.com/series.html?id=98981) 12: [Satsujin no Dessin](https://www.mangaupdates.com/series.html?id=74176) 13: [Kamen no Shouzou](https://www.mangaupdates.com/series.html?id=92738) 14: [Kurotenshi Shinsera](https://www.mangaupdates.com/series.html?id=85338) 15: [Shiroi Kamen](https://www.mangaupdates.com/series.html?id=85233) 16: [Kage o Koroshita Onna](https://www.mangaupdates.com/series.html?id=92809) 17: [Akai G Sen](https://www.mangaupdates.com/series.html?id=63077) 18: Kyōfu no Ōdokei 19: [Chinurareta Kuromisa](https://www.mangaupdates.com/series.html?id=99197) 20: [Shiryou Paulet no Koi](https://www.mangaupdates.com/series.html?id=85343) 21: [Eriza wa Ake to Moeta](https://www.mangaupdates.com/series.html?id=86060) 22: Kanashibari ga Kuru! 23: [Bara no Satsui](https://www.mangaupdates.com/series.html?id=99183) 24: [Yuurei Bunjou Juutaku](https://www.mangaupdates.com/series.html?id=93028) 25: [Kuroi Kodama](https://www.mangaupdates.com/series.html?id=99103) 26: [Youjo no Yuuwaku (SHIKANO Keiko)](https://www.mangaupdates.com/series.html?id=99196) 27: [Ningyou no Yobu Koe](https://www.mangaupdates.com/series.html?id=99118) 28: [Moebius no Yakata](https://www.mangaupdates.com/series.html?id=99198) 29: [Magnolia no Tenshi](https://www.mangaupdates.com/series.html?id=99181) 30: Yaminohate Kara 31: [Yomi kara no Koe](https://www.mangaupdates.com/series.html?id=63086) 32: 33: [Hakuchuumu (NARUMO Atsuko)](https://www.mangaupdates.com/series.html?id=92811) 34: [Futagoza Umare](https://www.mangaupdates.com/series.html?id=85287) 35: [Makyou no Yggdrasil](https://www.mangaupdates.com/series.html?id=99288) 36: [Mizuki no Mori](https://www.mangaupdates.com/series.html?id=99282) 37: [Chi no Shouzou](https://www.mangaupdates.com/series.html?id=99283) 38: [Chimamire no Takeningyou](https://www.mangaupdates.com/series.html?id=99263) 39: Norowareta Keizu 40: 41: Majo Iruma 42: Kyōto Kara Kita Rei Shōjo 43: [Kuro no Dendou](https://www.mangaupdates.com/series.html?id=99279) 44: [Anubis no Maryou](https://www.mangaupdates.com/series.html?id=99285) 45: [Kieta Hanayome](https://www.mangaupdates.com/series.html?id=99365)

At the young age of 20, he has three PhDs, and Gilbert, the chief of the 3rd project team, is a genius doctor who works at the Marine Research Institute. However, contrary to such ability, he was not very good at women. Early one morning, the institute contacted me and said that a super-secret state-secret research material was found off the coast of Florida. In front of Gilbert who rushed to the laboratory, what a beautiful naked mermaid ...!? A short story collection of 3 fantastic romance dramas!

In the *Kekkon Seisho* series: 1) *Shukufuku* 2) *Chikai* 3) *Eien*