Same-themed manga about kid fighting female ninjas from japanese imageboard.

Kodomo Janaishi! | I'm Not a Little Kid!

[Hochidonmai (Donburako)] Kids Know-It-All-Know-It-All-Know-Who-Go-Na-Na-Kid-Stream ★ ★

(C99) [sagejoh (sage joh)] Mou Kodomo ja nain da yo? | I'm Not a Kid Anymore, You Know? [English] [Nisor]

[Yakisoba Pants (Hiiragi Popura, Grand Deer)] Yanmama o Gaki no Sugata ni Natte Fukushuu NTR | Revenge NTR of a Yanmama in the Form of a Kid [English] {Doujins.com}

Older woman & kid body swap

(C84) [Karasuma Pink Higashiiru (Karasuma Pink)] Niwa ni wa 2-wa Niwatori ga Iru (Kid Icarus) [English] [Yuuta's Blog]

[Hidemaru] Kodomo ni Natte Okashi Makuru yo! Ch. 5 | Become a Kid and Have Sex All the Time! Part 5 (COMIC MILF 2013-06 Vol.13) [English] [Sergio]

(C90) [Karasuma Pink Higashiiru (Karasuma Pink)] Delivery Angel Land (Kid Icarus) [English] {TheRobotsGhost}

(ShotaFes 3) [Pometeor (Enotou)] Shinyakuseisho (Kid Icarus: Uprising)

[Voidy] MOM'S RED HAIR [Chinese] [超能汉化组]

[Mikihime] Chiisana Mama to H na Jijou | Doing My Tiny Mom [English] [Dysuka] [Digital]

[Yusaritsukata (Awayume)] Suzuya Mama ni Omakase | Just Leave It to Your Mom Suzuya (Kantai Collection -KanColle-) [English] [2d-market.com] [Decensored] [Digital]

[Kabayakiya (Unagimaru)] Okaa-san to Ofuro | Bathing With Mom (Fate/Grand Order) [English] [2d-market.com] [Decensored] [Digital]

[Qdou Kei] Kaa-chan to Nee-chan ga Hidoin da yo | My mom and big sister are cruel (COMIC MILF 2016-08 Vol. 31) [English] [Januz]

[Mikezoutei] Akuma ni Tamashii o Utta haha ga Inma Bitch e to Henbo Shite iku Hanashi | A Story Where My Mom Turns Into a Bitch [English] {Doujins.com}

[Edo Shigezu] Okinimesu Mama | Preferred Mom (Web Comic Toutetsu Vol. 10) [English] [Amoskandy]

[Mikezoutei] Akuma ni Tamashii o Utta haha ga Inma Bitch e to Henbo Shite iku Hanashi | A Story Where My Mom Turns Into a Bitch [English] {Doujins.com} [Incomplete]

[Mikezoutei] Akuma ni Tamashii o Utta haha ga Inma Bitch e to Henbo Shite iku Hanashi | A Story Where My Mom Turns Into a Bitch [English] {Doujins.com} [Incomplete]

(C93) [Gessyu (Chouzetsu Bishoujo mine)] Watashi ga Mama demo Ii desu ka? | Even If I'm a Mom (Fate/Grand Order) [English] [Saint Quartz Scans]

Mom cafe 第1話 [Chinese]中文

[Suzuki Dogezaemon] Tomodachi no Kaachan to SEX | Sex with a Friend's Mom [English] [Jashinslayer]

[Yunioshi] Tomodachi no Mama | Friend's Mom (COMIC ExE 06) [English] [N04h] [Digital]

(C93) [Imperial Chicken (Fujisaka Kuuki)] Mama o Morashite Amayakashitai - Mom wet her pants. Then, I'll spoil you. (Fate/Grand Order)

[Kharisma Jati] Cindhil's 17th Birthday Present From Mom [Chinese] [沒有漢化]

[Ponkotsu Damashii] Boku no Kanojo wa 40-sai no Hitozuma de Mama no Tomodachi | My Girlfriend is my mom's friend - A 40 year old housewife [English] [Jashinslayer]

[Urakan] Boku no Migawari Mama | My Scapegoat Mom [English] [Coffedrug]

[Yokoyama Lynch] Okaa-san no Shiriniku no Omomi ga Tamaranai | I Can't Get Enough of Mom's Heavy Ass (COMIC Kuriberon DUMA Vol.03) [English] [desudesu]

[Yokoyama Lynch] Okaa-san no Waki no Nioi ga Tamaranai | I Can't Get Enough of Mom's Armpit Stench (COMIC Kuriberon DUMA Vol. 01) [English] [desudesu] [Digital]

[Yokoyama Lynch] Okaa-san no Bonyuu no Aji ga Tamaranai | I Can't Get Enough of Mom's Breast Milk (COMIC Kuriberon DUMA Vol.04) [English] [desudesu]

[Itaba Hiroshi] Okaasan no Omocha | Mom's Toys (COMIC Shingeki 2016-12) [English] [N04h]

[Nokoppa] Mama wa Sakari Doki ! | The Mom Is The Mating Season! (COMIC Megastore DEEP Vol. 09) [Chinese] [你和那些漢化團體] [Digital]

[Kharisma Jati] Cindhil's 17th Birthday Present From Mom [English]

[Kharisma Jati] Cindhil's 17th Birthday Present From Mom Chapter 1 [English]

[Arubain] Kaa-chan to Ikkun | Mom and Ikki [English] [Amoskandy]