コウペンちゃん
Koupen-chan is a character conceived by artist [[Rurutea]], that started life on Twitter in 2017, and within 9 months of inception went on to win a LINE Creator's Stamp award.  The character has also been associated with musicians like 打首獄門同好会 (Uchikubi Gokumon Doukoukai).

Koupen-chan has a minimal design based on an Emperor Penguin chick, and often showing no facial emotion outside of blinking and blushing. Most notably, is quoted to say "erai!" ("amazing!") as a catchphrase.

https://twitter.com/k_r_r_l_l_
https://cancam.jp/archives/535286
koupen-chan