PEER REVIEWED*

Male VTuber Fertility Index™

A Rigorous Scientific Investigation into Digital Masculinity Cycles

January 2025
Data Layers:
Peak Fertility (Based on Gamer Rage)
Moderate (Unusual Softness)
Low (Normal Degen Behavior)
🔮 Predicted (Science™)

📋 Submit Field Research

Content Guidelines: Profanity and innuendo are fine (it's a fertility tracker parody). Slurs, explicit content, threats, and discriminatory language will be blocked. Be chaotic, not cruel.

🔬 Our Rigorous Scientific Methodology

*Note: This is entirely made up and that's the point.

Abstract

Through careful observation of male VTubers' streaming behavior, tweet patterns, and general online presence, our team of absolutely real scientists has developed a groundbreaking framework for determining peak fertility windows. Our methodology has the same scientific validity as the original female VTuber tracker, which is to say: absolutely none.

Key Behavioral Indicators

IndicatorFertility CorrelationScientific Basis
Gamer Rage IntensityHighTestosterone go brrrr (source: trust me bro)
Unusual Kindness to ChatMedium-HighOxytocin overflow, obviously
3 AM TweetsHighCircadian disruption = hormonal chaos
Excessive Gacha PullsPeakDopamine seeking behavior (definitely related)
Random KaraokeMediumMating display, per evolutionary psychology
Food TalkVariableNutrient seeking = nesting behavior?
SimpingHighMate Seeking = High Testosterone
Unhinged Behavior toward chatMediumCould be an indicator, could just be Tuesday
Unhinged behavior in other chatsHighStandard VTuber Mating display and courtship dance
Unusual Platforming SkillsLowGood platforming means low testosterone
Unusual Gamer skillsLowYou can't game if you're excessively horny
Random Model TogglingLowFocus on non-sex things
Unhinged RantPeakNo explanation needed, you only rant unhinged when you're peaking

Why This Exists

Someone actually made an "Ovulation Tracker" for female VTubers. They tracked women's presumed menstrual cycles based on their streaming behavior and mood. It was, and I cannot stress this enough, deeply unhinged and invasive.

This parody exists to highlight how absurd that concept is by applying the exact same "logic" to men. If tracking fertility cycles based on someone's tweets sounds ridiculous when applied to men, that's because it's ridiculous when applied to anyone.

Peer Review Status

This study has been reviewed by:

Conclusion

Don't track people's biological cycles based on their online behavior. It's weird. Go outside. Touch grass. Pet a dog. Do literally anything else.

🚫 Request Removal

Even though this site is a parody, we respect that not everyone wants to be included—even in satire. If you are a VTuber (or authorized representative) and would like your name removed from this site, please submit a request below.

All removal requests will be honored, no questions asked.

Enter the name as it appears on this site (we'll also match similar spellings)
What happens next:
  • Your request will be logged immediately
  • All existing entries for this name will be hidden from public view
  • The name will be added to a blocklist to prevent future submissions
  • If you provided verification, we may reach out to confirm
  • Questions? Contact: rinne@rinnepieko.com
Evidence submitted!