Same-themed manga about kid fighting female ninjas from japanese imageboard.
(C71) [Toko-ya (HEIZO, Kitou En)] Kashimashi (Chrono Cross, Inuyasha)
(C89) [Tekokids (Leonardo 16sei)] Aldora-tan no Okozukai Kasegi (Granblue Fantasy)
[Sasahara Yuuki] Want to be a kid
Kids Challenge
Suieibu Capriccio | Swimming Club Capriccio Ch. 1-6
My Kid Brother's Girl, Megumi[ENG]
(SC52) [Jyaraya] KIDS WAR (Ano Hi Mita Hana no Namae wo Bokutachi wa Mada Shiranai)
(Anata to Love Live! 5) [Ringoya (Alp)] Love Swimming Bell (Love Live!)
(C86) [Bakunyu Fullnerson (Kokuryuugan)] NIN NIN SLAYER ~Kids Ninja Shouten~ (King of Fighters) [English] {doujin-moe.us}
(C87) [Tekokids (Leonardo 16sei)] Onimusume -Inbi Onna Jigoku- (Oboro Muramasa) [Chinese] [臭鼬娘漢化組]
【Swimming at night】【夜泳】 【私人画家】
(C90) [Karasuma Pink Higashiiru (Karasuma Pink)] Delivery Angel Land (Kid Icarus) [English] {TheRobotsGhost}
[Zaki Zaraki] Hamezukids | Fuck-Happy-Kids [English] {Mistvern}
(C80) [DA HOOTCH (ShindoL)] DRAGON CHILD (TIGER & BUNNY)
Ookami to Shichihiki no Koyagi
Scary senior in swimming club 2
(C63) [Momoilock, Neo Hyper Kids (Kyousuke)] LOVE TRAP (Ragnarok Online)
[Karasuma Pink Higashiiru (Karasuma Pink)] Tobenai Tenshi wa Tadano Shota da (Kid Icarus) [Digital]
(C63) [GASOBooK (Matsumomo Mahiru)] GASOBooK Genkou Youshi RebootLEGONOMICS ‐0212 (Various)
[GUENDA SHOW] Adult Kids
(C61) [8bit (Astra, Makino Akine)] 8bit MATCHIK (Vampiyan Kids)
(Reitaisai 14) [Tekokids (Leonardo 16sei)] Otona no Cookie ~Asoteddo~ (Touhou Project) [Digital]
[the_orz] GO!GO! Suieibu -go go Swimming club-
[YOSHITORA] 救世主と救済者
[FRED-KELLY] Fighting Kids
Yukari 3
Popsicle - Spanish
[Athome Shuka (Takunomi)] Enjo Kouhai Swimming Costume [Digital]
[Hinotsuki Neko] Imouto x Swimming! | Little Sister x Swimming! (COMIC Grape Vol. 3) [English] [SaHa] [Digital]
(Panzer Vor! 23) [Mikamishi Juukou (Asa Yohoki)] Nishizumi Shiho no Jounetsu Beach (Girls und Panzer) [French]
Kinjo no Jimi na JC ni Otona no Asobi o Oshiete mita Hanashi
[Hidemaru] Kodomo ni Natte Okashi Makuru yo! Ch. 1-4 | Become a Kid and Have Sex All the Time! Part 1-4 [English] [desudesu]
Suieibu Capriccio | Swimming Club Capriccio + Extra
[Hanamaki Kaeru] Ouchi de Pool -Let's Swimming♥- (Otokonoko Friends) [English] [mysterymeat3]
[Momoyama Jirou] Kichiku no Ori ch. 1-3 [English] [desudesu]
(DC RETURNS 13) [Gesuido (Gesui)] JUST KIDDING (Kuroko no Basuke)
(C88) [Tekokids (Leonardo 16sei)] Tsuyu Biyori (My Hero Academia) [Chinese] [沒有漢化]
[Hino Hino] Gohoteki Mini Size [English] {bfrost}
(Ginban no glory 0.5) [Secret Room Pierrot (Migite)] big kid! (Yuri on Ice) [English]
Hitozuma Ninkatsu Swimming 13-nenmae, Rape Sareta Watashi to Shinyuu
Virtual Koubi no Chuusen ni Atarimashita
[John Sitch-Oh] Suieibu Capriccio | Swimming Club Capriccio Ch. 1-4 [English] [Lazarus H]
(C76) [DRAGULA (Imawano Lem)] This LOVE#88 (Soul Eater)
[Mizu Youkan] Swim With Kurumi! (English)
Etsuran Kinshi
Yanmama o Gaki no Sugata ni Natte Fukushū NTR | Revenge NTR of a Yanmama in the Form of a Kid
(ParaGin 16) [MB38 (Sabano Misoni)] Nakimushi Saga to Koufuku no Megami (Saint Seiya)
[Zaki Zaraki] Hamezukids
[Kabashima Akira] Roshutsu Hentai Manual
[AskRay (Bosshi)] Sera Futa 2 [English] [Digital]
Sex Swim Club
(C88) [H-SQUAD (Guglielmo)] Zenra de Suiei no Jugyou!! | Naked Swimming Class!! [English] =LWB= [Colorized] [Decensored]
NOSFERATU IN KASUMIGAURA
[Sakura Gai] Orga Kids Adventure
Marie-chan punishment started
[John Sitch-Oh] Suieibu Capriccio | Swimming Club Capriccio + Extra [English] [Lazarus H]
(C80) [Lv.X+ (Yuzuki N Dash)] MY LOVED HERO (TIGER & BUNNY) [English] [darknight]
[Campbell Gichou] Swimming Life Ch. 1
(COMIC1☆6) [Bronco Hitoritabi (Uchi-Uchi Keyaki)] Majimegami Magazine (Kid Icarus)