★ 9.11
Rating
♥ 52.7K
Follows
Onii-chan wa Oshimai!
Synopsis
Read Onii-chan wa Oshimai! (Manga (JP)) in Italiano on KOMIKCAST. Author: Nekotoufu.
Mahiro Oyama was just a normal erotic-game loving dude...until he woke up one morning as a woman! Turns out his mad-scientist little sister, Mihari, tried out one of her new experiments on him...with a disastrous outcome, as far as Mahiro's concerned! But Mihari is as determined to study him as he is determined to go back to his shut-in, game-playing life, and one thing's for sure...life is going to get a whole lot weirder from here on out!
*5th place of Tsugi Manga Awards, Category Webmanga
- Retail: (Direct Retail From the Mangaka)
 Official Melon Books
 Official Toranoana
 Official DLSite (jp)
... Read more chapters of Onii-chan wa Oshimai! for free on KOMIKCAST.
Mahiro Oyama was just a normal erotic-game loving dude...until he woke up one morning as a woman! Turns out his mad-scientist little sister, Mihari, tried out one of her new experiments on him...with a disastrous outcome, as far as Mahiro's concerned! But Mihari is as determined to study him as he is determined to go back to his shut-in, game-playing life, and one thing's for sure...life is going to get a whole lot weirder from here on out!
*5th place of Tsugi Manga Awards, Category Webmanga
- Retail: (Direct Retail From the Mangaka)
 Official Melon Books
 Official Toranoana
 Official DLSite (jp)
... Read more chapters of Onii-chan wa Oshimai! for free on KOMIKCAST.
Chapters List
80 Total
56.5
Nayutan e il costume da bagno - Kaede e le JK
Oct 18, 2024
9p
Kamai-tachi
56
Mahiro e la riunione strategica
Oct 15, 2024
15p
Kamai-tachi
55
Mahiro e l'avventura estiva
Oct 06, 2024
16p
Kamai-tachi
54.5
Mahiro e la mente serena
May 14, 2024
6p
Kamai-tachi
54
Mahiro e le storie di fantasmi scolastici
Jan 14, 2024
15p
Kamai-tachi
53.5
Ragazzi e ragazze
Jan 14, 2024
6p
Kamai-tachi
53
Mahiro e la tramontana e il sole
Nov 03, 2023
15p
Kamai-tachi
52
Mahiro e il giardino
Sep 27, 2023
15p
Kamai-tachi
51
Mahiro e il passaggio della stagione delle piogge
Aug 28, 2023
14p
Kamai-tachi
50
Mahiro e le lezioni di nuoto (parte 2)
Jun 15, 2023
16p
Kamai-tachi
49
Mahiro e le lezioni di nuoto (Parte 1)
Mar 23, 2023
16p
Kamai-tachi
48
Mahiro e la giornata di osservazione
Jan 11, 2023
14p
Kamai-tachi
47
Mahiro e la ragazza solare
Jan 07, 2023
14p
Kamai-tachi
46
Mahiro e la collezione di stickers
Dec 29, 2022
13p
Kamai-tachi
45
Mahiro e il cambio d'abiti stagionale
Dec 06, 2021
13p
Kamai-tachi
44
Mahiro e il segreto BBQ
Dec 02, 2021
14p
Kamai-tachi
43
Mahiro e la fragranza
Nov 02, 2021
13p
Kamai-tachi
42
Mahiro e il dono dei ricordi
Feb 08, 2021
13p
Kamai-tachi
41
Mahiro e gli esami fisici
Jan 23, 2021
13p
Kamai-tachi
40.8
Chapter 40.8
Jan 19, 2021
7p
Kamai-tachi
40.5
Mahiro e le gambe scoperte
Jan 01, 2021
2p
Kamai-tachi
40
Mahiro e un importante segreto (Parte 2)
Jan 01, 2021
13p
Kamai-tachi
39
Mahiro e un importante segreto
Jan 01, 2021
14p
Kamai-tachi
38.5
Momiji e il massaggio
Jan 19, 2021
3p
Kamai-tachi
38
Mahiro e un' apprezzata pausa
Jan 01, 2021
13p
Kamai-tachi
37.5
Mahiro e le ragazze del liceo
Jan 01, 2021
4p
Kamai-tachi
37
Mahiro e il manierismo femminile
Jan 01, 2021
13p
Kamai-tachi
36.5
Mahiro e il regalo
Jan 01, 2021
2p
Kamai-tachi
36
Mahiro e la sorpresa
Jan 01, 2021
13p
Kamai-tachi
35
Mahiro e le predizioni sulla fortuna
Jan 01, 2021
13p
Kamai-tachi
34.5
pt. 1 - 2 - 3
Dec 24, 2020
7p
Kamai-tachi
34
Mahiro e la porta per adulti
Dec 19, 2020
13p
Kamai-tachi
33.5
Mahiro e i dolci fatti a mano
Dec 10, 2020
4p
Kamai-tachi
33
Mahiro e San Valentino
Nov 14, 2020
13p
Kamai-tachi
32.5
Mahiro e la bevanda
Oct 25, 2020
3p
Kamai-tachi
32
Mahiro e la visita a sorpresa
Oct 19, 2020
14p
Kamai-tachi
31
Mahiro e le affascinanti gambe scoperte
Oct 07, 2020
13p
Kamai-tachi
30.8
Asahi e Momiji
Oct 01, 2020
8p
Kamai-tachi
30.5
Mahiro e il bacio appassionato
Oct 01, 2020
6p
Kamai-tachi
30
Mahiro e il vecchio e nuovo anno
Sep 28, 2020
15p
Kamai-tachi
29
Mahiro e il doppio appuntamento
Sep 21, 2020
14p
Kamai-tachi
28.1
Mahiro e la serata per ragazze (seconda parte) (tank version)
Sep 21, 2020
21p
Kamai-tachi
28
Mahiro e la serata per ragazze (parte 2)
Sep 16, 2020
18p
Kamai-tachi
27
Mahiro e la serata per ragazze (parte 1)
Sep 15, 2020
13p
Kamai-tachi
26
Mahiro e la pasticceria
Sep 12, 2020
15p
Kamai-tachi
25
Mahiro e gli esami
Sep 12, 2020
13p
Kamai-tachi
24.5
Parte 1: Mahiro e il bento - Parte 2: Mihari e il bento
Sep 15, 2020
9p
Kamai-tachi
24
Mahiro e gli interessi comuni
Sep 12, 2020
14p
Kamai-tachi
23
Mahiro e il divertente weekend
Sep 04, 2020
10p
Kamai-tachi
22
Mahiro e la dura lezione
Sep 04, 2020
13p
Kamai-tachi
21
Mahiro e il primo giorno di scuola
Sep 04, 2020
15p
Kamai-tachi
20
Mahiro e le studentesse delle medie
Sep 02, 2020
15p
Kamai-tachi
19
Mahiro e i video in rete
Sep 02, 2020
9p
Kamai-tachi
18.6
[Special] Mahiro e il party
Sep 28, 2020
3p
Kamai-tachi
18
Mahiro e il panico all'onsen (seconda parte)
Sep 01, 2020
15p
Kamai-tachi
17
Mahiro e il panico all'onsen (prima parte)
Aug 31, 2020
15p
Kamai-tachi
16
Mahiro e la parrucchiera
Aug 31, 2020
11p
Kamai-tachi
15.5
Sorelle e kotatsu
Aug 30, 2020
5p
Kamai-tachi
15
Mahiro e il party notturno
Aug 30, 2020
14p
Kamai-tachi
14
Mahiro e una piccola avventura
Aug 28, 2020
14p
Crowner Legion - Ikigai
13
Mahiro e una sana relazione
Jul 23, 2020
14p
Kamai-tachi
12.5
Mahiro e Nichiasa
Jul 23, 2020
3p
Kamai-tachi
12
Mahiro e la notte solitaria
Jul 23, 2020
10p
Kamai-tachi
11
Mahiro e l'avventura
Jul 23, 2020
14p
Kamai-tachi
10.5
Mahiro e gli aiuti & Omake - Mihari e Onii-chan
May 11, 2020
10p
Kamai-tachi
10
Mahiro e la speciale guardia di casa
Apr 19, 2020
15p
Kamai-tachi
9.5
Mahiro e i due segreti
Mar 19, 2020
5p
Kamai-tachi
9
Mahiro e la vacanza per ragazze
Mar 19, 2020
12p
Kamai-tachi
8.5
Mahiro e i gacha
Jan 27, 2020
9p
Kamai-tachi
8
Mahiro e il nuovo gioco
Jan 23, 2020
14p
Kamai-tachi
7
Mahiro e l'incontro con lo sconosciuto
Jan 16, 2020
14p
Kamai-tachi
6.5
Mahiro e il giro in tondo
Jan 05, 2020
4p
Kamai-tachi
6
Mahiro e il giardino segreto
Dec 28, 2019
12p
Kamai-tachi
5.5
Mahiro e il comfort per molti giorni
Dec 01, 2019
4p
Kamai-tachi
5
Mahiro e la malinconica giornata
Dec 01, 2019
12p
Kamai-tachi
4
Mahiro e gli MMORPG
Dec 01, 2019
12p
Kamai-tachi
3
Mahiro e l'identità
Nov 15, 2019
13p
Kamai-tachi
2
Mahiro e il pericoloso specchio
Nov 08, 2019
13p
Kamai-tachi
1.5
onii-chan e il bagno
Nov 01, 2019
7p
Kamai-tachi
1
Mahiro e l'inaspettato nuovo corpo
Oct 30, 2019
14p
Kamai-tachi
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