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22-year-old Rin has two major problems: a complex about the tattoo-like birthmark on his butt and a crush on an older woman who thinks of him as her little brother. Rin hasn't allowed any woman to see his naked bottom since an incident when he was 7, which firmly entrenched his shame about his birthmark. When he finds his birthmark may grant him mystical powers over the opposite sex, will he finally be able to use his butt to his advantage?

Chapters

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Vol.15 Chapter 155: Just the Two of Them
August 30, 2016
Vol.10 Chapter 104: Respective Determinations
August 30, 2016
Vol.10 Chapter 103: My Responsibility
August 30, 2016
Vol.10 Chapter 102: I Will Release You
August 30, 2016
Vol.10 Chapter 101: Dangerous Woman
August 30, 2016
Vol.10 Chapter 100: Delusional Captive
August 30, 2016
Vol.10 Chapter 99: Indecisive
August 30, 2016
Vol.10 Chapter 98: Stop Being Facetious!!
August 30, 2016
Vol.10 Chapter 97: The Destined One
August 30, 2016
Vol.10 Chapter 96: Somebody Else
August 30, 2016
Vol.9 Chapter 95: You Are Wrong!
August 30, 2016
Vol.9 Chapter 94: Crossing The Line
August 30, 2016
Vol.9 Chapter 93: Angry eyes
August 30, 2016
Vol.9 Chapter 92: She Saw Me!
August 30, 2016
Vol.9 Chapter 91: Money Rules
August 30, 2016
Vol.9 Chapter 90: The Happiness of Both
August 30, 2016
Vol.9 Chapter 89: Doesn't Mean Anything
August 30, 2016
Vol.9 Chapter 88: I'm Ready
August 30, 2016
Vol.9 Chapter 87: Awakening
August 30, 2016
Vol.9 Chapter 86: Bought
August 30, 2016
Vol.9 Chapter 85: Money and Love
August 30, 2016
Vol.8 Chapter 84: Marry Me!
August 30, 2016
Vol.8 Chapter 83: Claiming It
August 30, 2016
Vol.8 Chapter 82: Pimp!!
August 30, 2016
Vol.8 Chapter 81: The Power to Cause Unhappiness
August 30, 2016
Vol.8 Chapter 80: Ghost Gentleman
August 30, 2016
Vol.8 Chapter 79: Ootori and Chizuru
August 30, 2016
Vol.8 Chapter 78: Nothing
August 30, 2016
Vol.8 Chapter 77: Forever Together
August 30, 2016
Vol.8 Chapter 76: A Cruel Choice
August 30, 2016
Vol.8 Chapter 75: Not Letting Go
August 30, 2016
Vol.8 Chapter 74: Tristan and Isolde
August 30, 2016
Vol.7 Chapter 73: Oral
August 30, 2016
Vol.7 Chapter 72: Envy
August 30, 2016
Vol.7 Chapter 71: Breasts
August 30, 2016
Vol.7 Chapter 70: Show Me Your Mark?
August 30, 2016
Vol.7 Chapter 69: Something I Want to Show You
August 30, 2016
Vol.7 Chapter 68: Like a Dream
August 30, 2016
Vol.7 Chapter 67: I Love You, Rin-kun
August 30, 2016
Vol.7 Chapter 66: Don't Trouble Me
August 30, 2016
Vol.7 Chapter 65: The Two of Them on That Day
August 30, 2016
Vol.7 Chapter 64: Adult
August 30, 2016
Vol.7 Chapter 63: Even Then, I'll
August 30, 2016
Vol.6 Chapter 62: I Should Just Use It
August 30, 2016
Vol.6 Chapter 61: I Won't Hand Her Over
August 30, 2016
Vol.6 Chapter 60: I Can't Take It
August 30, 2016
Vol.6 Chapter 59: Madeleine
August 30, 2016
Vol.6 Chapter 58: Individual Feelings
August 30, 2016
Vol.6 Chapter 57: Like I Thought
August 30, 2016
Vol.6 Chapter 56: Piggyback
August 30, 2016
Vol.6 Chapter 55: Jump, Dolphin, Jump
August 30, 2016
Vol.6 Chapter 54: Chizuru's Memories V
August 30, 2016
Vol.6 Chapter 53: Chizuru's Memories IV
August 30, 2016
Vol.6 Chapter 52: Chizuru's Memories III
August 30, 2016
Vol.5 Chapter 51: Chizuru's Memories II
August 30, 2016
Vol.5 Chapter 50: Chizuru's Memories I
August 30, 2016
Vol.5 Chapter 49: It's Me, Chiruzu....
August 30, 2016
Vol.5 Chapter 48: Aren't We in the Same Boat?
August 30, 2016
Vol.5 Chapter 47: Don't Fuck With Me!!
August 30, 2016
Vol.5 Chapter 46: Screw, or Be Screwed
August 30, 2016
Vol.5 Chapter 45: One Year Later
August 30, 2016
Vol.5 Chapter 44: So It Was True
August 30, 2016
Vol.5 Chapter 43: The Man of My Life
August 30, 2016
Vol.5 Chapter 42: I'm Not Gonna Lose!!
August 30, 2016
Vol.5 Chapter 41: Ways of Expressing Feelings
August 30, 2016
Vol.4 Chapter 40: About the Birthmark
August 30, 2016
Vol.4 Chapter 39: I Love You
August 30, 2016
Vol.4 Chapter 38: Rin-kin's Fault
August 30, 2016
Vol.4 Chapter 37: Night of Sex
August 30, 2016
Vol.4 Chapter 36: Sex With Rin
August 30, 2016
Vol.4 Chapter 35: What the Hell am I Doing?
August 30, 2016
Vol.4 Chapter 34: I Don't Get It
August 30, 2016
Vol.4 Chapter 33: Anxiety
August 30, 2016
Vol.4 Chapter 32: Bad Older Sister
August 30, 2016
Vol.4 Chapter 31: To Hell With Love
August 30, 2016
Vol.4 Chapter 30: What am I Stupid!!
August 30, 2016
Vol.3 Chapter 29: Bad Woman
August 30, 2016
Vol.3 Chapter 28: Sharing Happiness
August 30, 2016
Vol.3 Chapter 27: From the Beginning
August 30, 2016
Vol.3 Chapter 26: I Knew It
August 30, 2016
Vol.3 Chapter 25: Old Lady
August 30, 2016
Vol.3 Chapter 24: That's an Order!
August 30, 2016
Vol.3 Chapter 23: Postponement
August 30, 2016
Vol.3 Chapter 22: That Look
August 30, 2016
Vol.3 Chapter 21: Meeting Place
August 30, 2016
Vol.3 Chapter 20: I Believe In Her!!
August 30, 2016
Vol.3 Chapter 19: In Heat, In Heat, In Heat!!
August 30, 2016
Vol.2 Chapter 18: Ya--------h!!
August 30, 2016
Vol.2 Chapter 17: I'm Not Going to Let Go!
August 30, 2016
Vol.2 Chapter 16: Don't Trust Her!
August 30, 2016
Vol.2 Chapter 15: Until We Get Married
August 30, 2016
Vol.2 Chapter 14: You Wanted to Take It?
August 30, 2016
Vol.2 Chapter 13: The Birthmark's Limit
August 30, 2016
Vol.2 Chapter 12: Farewell!!
August 30, 2016
Vol.2 Chapter 11: My First Time...
August 30, 2016
Vol.2 Chapter 10: Like Me
August 30, 2016
Vol.2 Chapter 9: I'm Sorry
August 30, 2016
Vol.1 Chapter 8: As a Man...
August 30, 2016
Vol.1 Chapter 7: Just a Little Bit...
August 30, 2016
Vol.1 Chapter 6: I Got It!!
August 30, 2016
Vol.1 Chapter 5: You're Making Fun of Me...
August 30, 2016
Vol.1 Chapter 4: Bare Your Fangs
August 30, 2016
Vol.1 Chapter 3: Even So You're Still a Good for Nothing
August 30, 2016
Vol.1 Chapter 2: The Birthmark's Magic
August 30, 2016
Vol.1 Chapter 1:I've Lived Hiding My Ass
August 30, 2016

Other Facts

PublishedSep 14, 2009 to Apr 15, 2013
SerializationBig Comic Spirits
Last UpdatedSeptember 10, 2017
LanguagesEnglish, Japanese
Other namesEcce S, このSを、見よ! クピドの悪戯, Take a Look at This S!