Tenchi Muyo! Ryo-Ohki 2 - Recommendations

• Vol: 2; Ch: 16
• 1993 - 1994

Junior high student Mao Hoshimi is a small and somewhat effeminate but otherwise typical boy. At least he is until he turns into a girl while hitting the baths with his best friend Shunsuke Hidaka! But this is the least of his shocks--Mao learns he is actually of alien descent! Because the numbers of his species are so few, Mao learns, its members have the ability to change shape to breed with other species--and also to transform from male to female and from female to male to suit a potential mate. It seems that, now that Mao is in puberty, he is fated to become a suitable partner for whomsoever he comes in close contact with, be it Tomoko Yokawa, the cute girl he just met, or, to his horror, Shunsuke!

• Ch: 2
• 2008

Ren Sonoda, 13 year old middle school girl, is abducted by a UFO one night and she finds she has an extra appendage between her legs in the morning! A space chicken promises to return her to normal, but only if she'll help track down an intergalactic fugitive...

• Vol: 2; Ch: 15
• 2013 - 2015

Shibata Youichi is an ordinary high schooler, but one day he runs into a mysterious heroine! The cute girl knows his name, and (as in a stereotypical anime) she's an alien who needs him to help save her people! Soon enough, Youichi finds out that this situation was too good to be true... The girl, named Kyara, does represent aliens, but her people are actually interested in Japanese manga/anime/game culture. They want to use his home as a base and his brain as a measuring tool of the level of appeal of their heroines!

• Vol: 11; Ch: 67
• 2002 - 2007

Kazuto Tokino lives his tranquil life attending high school by day and running the family bath house by night; but his peace is all set to change. One fateful day, the Beautiful Princess Valkyrie crashes her spaceship into Kazuto’s public bath, killing the high-schooler outright! In order to revive him, Valkyrie gives the teen half of her soul, with the unfortunate side-effect of reverting the princess back to a child in both body and mind. Now the young Valkyrie is moving in to the bathhouse and, with her brash sister Hydra and over-protective catgirl maid Sanada following close behind, it seems Kazuto’s peaceful life is long behind him…

• Vol: 2+; Ch: 21+
• 2023 - ?

Yuto follows Mikoto, a childhood friend and high school girl who is one year older, to enter the same high school. When she goes home with Mikoto for the first time in a year, it turns out that Mikoto only sees Yuto as her younger brother. Yuto is a little dizzy about the difficult road ahead, but an alien "onee-san" in a very erotic outfit appears in front of the two...!? 

• One Shot
• 2024

• Vol: 6; Ch: 51
• 1977 - 1978

Mu, an alien, just moved into the apartment next door, 60 centimetres away from the room of Ken-chan, an unsuccessful graphic artist, at the Venus Manor. The man is driven mad by her mysterious charm. Soon, Mu starts to work at a cabaret, Ken and the people around him get caught up in an unusual commotion due to Mu's free-spirited and mysterious charm.

• Vol: 3; Ch: 12
• 2009 - 2010

A planet-threatening space disease, the "demon flu", has infected an inhabitant of Earth, and a space doctor is needed! The Space Medical Bureau has chosen Dr. Rurru for the job, but -- unfortunately for Minao Hitoharu, the infected patient -- she has a tendency to mishear and misspeak (with a mind towards ecchi) to comical effect.

• One Shot
• 2017

• One Shot
• 2019