A Guide to BTOB Lee Changsub (2023)

A thing I decided to make to commemorate Changsub's 32nd birthday. Featuring sources for all videos used and newly subbed snippets! I fact-checked to the best of my ability; I apologize if there are any inaccuracies. Everyone probably knows most of the info and it's really long but I hope you enjoy it anyway.
TIMESTAMPS
00:00 Intro
00:13 Basics
03:06 Vocals
07:55 Units (that Changsub is part of)
09:56 Musicals
11:28 Personality
17:04 Skills
19:33 Likes
21:36 Dislikes
24:32 (some of) Changsub's Friends
27:23 BTOB
[correction: Idol Room at 16:12 is from 2018]
[another correction: subs at 10:11 should say 2021, not 2020]