I Don't Know... That's Scary... — Manga panels titled 'True Power' showing a worried old master saying 'That's scary... I don't know...' in response to a

I Don't Know... That's Scary...

2013reaction imageclassic

Published October 22, 2026

Taken from Kosuke Masuda's absurdist manga "Gag Manga Biyori," the panel shows a worried teacher answering a flexing, aura-radiating student with "I don't know... That's scary." Tumblr user @koukiboy's February 2013 scan gathered over 140,000 notes1, and by 2024, X users were pasting the final panel over jokes about intrusive thoughts and clueless doctors6.

anime manga comic book panel memes reaction memes absurdist humor memes tumblr memes

Overview

Posts usually crop to the final frame of the "True Power" page, where a caption above sets up a question or anecdote and the panel delivers the teacher's flat admission3. The joke casts the clueless teacher as whichever authority figure fits the moment, such as a doctor, a parent, or a boss, whose confusion lands as more unsettling than reassuring2.

The absurd original setup, with a student screaming while a mysterious aura overflows from his body, lets the teacher's deadpan response read as both a punchline and a horror beat. That tonal mismatch kept the panel useful across sincere confessions, oddball medical anecdotes, and arguments where someone demands expertise and gets none5.

Origin & Background

Platform
Gag Manga Biyori (source) / Tumblr (viral spread)
Creator
Kosuke Masuda
Date
2013

Kosuke Masuda drew the "True Power" page for "Gag Manga Biyori," a series known for non-sequitur gags3. According to TinEye, the earliest tracked post of the panel appeared on the South Korean blog platform Egloos7. On February 16, 2013, Tumblr user @koukiboy reposted the full page under the title "I frikin hate gyagu," and the scan gathered over 140,000 notes over the next decade1.

How It Spread

On September 6, 2019, Tumblr user @maamlet dropped the final panel into a reply thread, which drew more than 100,000 notes within five years2. On January 11, 2021, @yandere-angela reposted the image as a standalone reaction and gathered over 50,000 notes4. In early 2022, Tumblr user @tsunflowers used it on a post that collected 13,000 notes4.

On February 24, 2023, @sexhaver matched the panel to an anecdote about a doctor who sneezes at least twice in a row, and the post gathered over 42,000 notes5. The reaction then moved onto X: on June 14, 2024, user @IzzzyzzzArt captioned the panel with a joke about people whose "intrusive thoughts" amount to wondering if they should dye their hair, and the tweet collected over 70,000 likes in three days6.

Timeline

2013-02-16

Tumblr user @koukiboy reposts the full "True Power" page, the earliest known Tumblr appearance[1].

2019-09-06

@maamlet uses the last panel as a reply, drawing over 100,000 notes[2].

2021-01-11

@yandere-angela posts the panel as a standalone reaction image on Tumblr[4].

2022-02-05

@tsunflowers posts the image on Tumblr, collecting 13,000 notes[4].

2023-02-24

@sexhaver pairs the panel with a doctor sneezing anecdote, gathering 42,000 notes[5].

2024-06-14

X user @IzzzyzzzArt uses the panel for an intrusive-thoughts joke, picking up 70,000 likes in three days[6].

Loading tweet...

Frequently Asked Questions