Osananajimi no Mune ga Ookiku natta no wa Ore no sei ka mo shirenai 
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Description
In his second year in high school, Yamato has a big problem. His best friend from childhood, Honoka, has a certain stress-induced illness that made her chest huge. Now he struggles to protect her from those who look at her with predator eyes?
Type
Manga
Related Series
N/A
Associated Names
It May Be My Fault That My Childhood Friend's Breasts Got Bigger
It's Possible That My Childhood Friend's Boobs Became Big Because of Me
My Childhood Friend's Breasts Grew Because of Me
幼馴染の胸が大きくなったのは俺のせいかもしれない
Groups Scanlating
Latest Release(s)
c.Oneshot by The real group is the friends we made along the way 5 years ago
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Oneshot (Complete)
Completely Scanlated?
Yes
Anime Start/End Chapter
N/A
User Reviews
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Forum
0 topics, 0 posts
Click here to view the forumUser Rating
Average: 6.5 / 10.0 (46 votes)
Bayesian Average: 6.4 / 10.0
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Last Updated
November 21st, 2025 9:19pm PST - 2 weeks ago
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Genre
Categories
Category Recommendations
Recommendations
N/A
Author(s)
Artist(s)
Year
Original Publisher
Serialized In (magazine)
Shounen Jump + (Shueisha)
Licensed (in English)
No
English Publisher
N/A
Activity Stats (vs. other series)
Weekly Pos #313 
(-275)
(-275)Monthly Pos #1695 
(+5)
(+5)3 Month Pos #3303 (-639)
(-639)6 Month Pos #4146 (-1555)
(-1555)Year Pos #7896 (+271)
(+271)List Stats
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