Onii-chan wa Oshimai
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Mahiro Oyama was an ordinary guy who had an interest in erotic games. However, his life took a sudden turn when he woke up as a female one morning. His younger sister Mihari had used him in one of her scientific experiments, which had a catastrophic effect on Mahiro. Despite his desire to return to his previous lifestyle of playing games and remaining indoors, Mihari was determined to study him, and things were bound to get even more bizarre from here on out.
Type
Manga
Genre
Published
September 28, 2024
Updated
November 22, 2025
Onii-chan wa Oshimai Episodes
Chapter 103
September 6, 2025
Chapter 102
July 26, 2025
Chapter 101
June 28, 2025
Chapter 100
May 31, 2025
Chapter 99
April 26, 2025
Chapter 98
March 29, 2025
Chapter 97
February 22, 2025
Chapter 96
January 25, 2025
Chapter 95.9
January 1, 2025
Chapter 95.5
March 29, 2025
Chapter 95
January 1, 2025
Chapter 94
November 30, 2024
Chapter 93.5
January 25, 2025
Chapter 93
October 29, 2024
Chapter 92
September 28, 2024
Chapter 91.5
January 25, 2025
Chapter 91
September 28, 2024
Chapter 90.9
October 29, 2024
Chapter 90.8
October 29, 2024
Chapter 90.5
September 28, 2024
Chapter 90
September 28, 2024
Chapter 89
September 28, 2024
Chapter 88
September 28, 2024
Chapter 87
September 28, 2024
Chapter 86.9
September 28, 2024
Chapter 86.5
September 28, 2024
Chapter 86
September 28, 2024
Chapter 85.5
September 28, 2024
Chapter 85
September 28, 2024
Chapter 84
September 28, 2024
Chapter 83.9
September 28, 2024
Chapter 83
September 28, 2024
Chapter 82.5
September 28, 2024
Chapter 82
September 28, 2024
Chapter 81.9
September 28, 2024
Chapter 81.5
September 28, 2024
Chapter 81
September 28, 2024
Chapter 80.8
September 28, 2024
Chapter 80.5
September 28, 2024
Chapter 80
September 28, 2024
Chapter 79
September 28, 2024
Chapter 78.9
September 28, 2024
Chapter 78.5
September 28, 2024
Chapter 78
September 28, 2024
Chapter 77
September 28, 2024
Chapter 76.9
September 28, 2024
Chapter 76.1
September 28, 2024
Chapter 76
September 28, 2024
Chapter 75
September 28, 2024
Chapter 74.5
September 28, 2024
Chapter 74.1
September 28, 2024
Chapter 74
September 28, 2024
Chapter 73
September 28, 2024
Chapter 72.9
September 28, 2024
Chapter 72
September 28, 2024
Chapter 71.5
September 28, 2024
Chapter 71
September 28, 2024
Chapter 70.5
April 24, 2025
Chapter 70
September 28, 2024
Chapter 69
September 28, 2024
Chapter 68
September 28, 2024
Chapter 67
September 28, 2024
Chapter 66
September 28, 2024
Chapter 65
September 28, 2024
Chapter 64
September 28, 2024
Chapter 63
September 28, 2024
Chapter 62
September 28, 2024
Chapter 61
September 28, 2024
Chapter 60.5
September 28, 2024
Chapter 60
September 28, 2024
Chapter 59
September 28, 2024
Chapter 58
September 28, 2024
Chapter 57
September 28, 2024
Chapter 56
September 28, 2024
Chapter 55
September 28, 2024
Chapter 54
September 28, 2024
Chapter 53
September 28, 2024
Chapter 52
September 28, 2024
Chapter 51
September 28, 2024
Chapter 50.5
April 24, 2025
Chapter 50.1
September 28, 2024
Chapter 50
September 28, 2024
Chapter 49
September 28, 2024
Chapter 48
September 28, 2024
Chapter 47
September 28, 2024
Chapter 46
September 28, 2024
Chapter 45
September 28, 2024
Chapter 44
September 28, 2024
Chapter 43
September 28, 2024
Chapter 42
September 28, 2024
Chapter 41
September 28, 2024
Chapter 40.5
September 28, 2024
Chapter 40
September 28, 2024
Chapter 39
September 28, 2024
Chapter 38
September 28, 2024
Chapter 37
September 28, 2024
Chapter 36
September 28, 2024
Chapter 35
September 28, 2024
Chapter 34
September 28, 2024
Chapter 33
September 28, 2024
Chapter 32
September 28, 2024
Chapter 31
September 28, 2024
Chapter 30.5
September 28, 2024
Chapter 30
September 28, 2024
Chapter 29
September 28, 2024
Chapter 28
September 28, 2024
Chapter 27
September 28, 2024
Chapter 26
September 28, 2024
Chapter 25
September 28, 2024
Chapter 24
September 28, 2024
Chapter 23
September 28, 2024
Chapter 22
September 28, 2024
Chapter 21
September 28, 2024
Chapter 20.5
September 28, 2024
Chapter 20
September 28, 2024
Chapter 19
September 28, 2024
Chapter 18
September 28, 2024
Chapter 17
September 28, 2024
Chapter 16
September 28, 2024
Chapter 15
September 28, 2024
Chapter 14
September 28, 2024
Chapter 13
September 28, 2024
Chapter 12
September 28, 2024
Chapter 11
September 28, 2024
Chapter 10.5
September 28, 2024
Chapter 10
September 28, 2024
Chapter 9
September 28, 2024
Chapter 8
September 28, 2024
Chapter 7
September 28, 2024
Chapter 6
September 28, 2024
Chapter 5
September 28, 2024
Chapter 4
September 28, 2024
Chapter 3
September 28, 2024
Chapter 2
September 28, 2024
Chapter 1
September 28, 2024
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