Manga like Hammer and Mermaid!

2010, Manga, ongoing, 73%

Female Harem, School, Revenge

2019, Manga, 101 ch, 77%

Both have Swimming.

1989, Manga, 131 ch, 74%

Shounen, Heterosexual, Love Triangle

1987, Manga, 119 ch, 79%

Both have Swimming.

2007, Manga, 127 ch, 71%

Female Harem, Male Protagonist, Primarily Female Cast

2014, Manga, 20 ch, 74%

Both have Swimming.

2022, Manga, 23 ch, 71%

Both have Nudity.

1999, Manga, 55 ch, 69%

Both have Swimming.

2010, Manga, ongoing, 73%

Both have Nudity.

2013, Light novel, 21 ch, 79%

Both have Swimming.

1996, Manga, ongoing, 71%

Both have Nudity.

2005, Manga, 24 ch, 70%

Ghost, Nudity, Seinen

1998, Manga, 153 ch, 70%

Both have Nudity.

2017, Manga, 19 ch, 71%

Both have Swimming.

2007, Manga, 61 ch, 72%

Seinen, Male Protagonist, College

2008, Manga, 160 ch, 73%

Female Harem, Seinen, Drawing

2009, Manga, 32 ch, 73%

School, Seinen, Heterosexual

2003, Manga, 243 ch, 71%

Both have Nudity.

2003, Manga, 63 ch, 71%

Both have Nudity.

2011, Manga, 53 ch, 72%

Female Harem, Male Protagonist, School

2018, One-shot, 1 ch, 71%

Both have Swimming.

2012, Light novel, ongoing, 69%

Both have Nudity.

2016, Manga, 11 ch, 69%

Both have Swimming.