It's reconstructed using the various other anime openings it's referencing.
Based on the comparison video by @HyTaKe2
• Yumemiru Danshi wa Genjitsushugisha O...
(sorry, i disagree with you on the Higurashi bit, so I excluded it here)
I was initially worried content ID would pick up on this and almost gave up on doing this, but I had a hunch that, since the video switches sources every few seconds or so, it shouldn't be able to easily know what to look for to get a content match. I was right. :p
Subtitles taken from HIDIVE.
...Extra stuff down below to make this video more searchable...
JP title: 『夢見る男子は現実主義者』
Romaji: "Yumemiru Danshi wa Genjitsushugisha"
Sources used (in no particular order):
Nisekoi S2 ED1
Monogatari S2 OP3 (Otorimonogatari)
Oregairu/My Teen RomCom SNAFU S2 OP1 (TV broadcast ver.)
KanoKari/Rent-A-Girlfriend S2 OP1
Bottom-tier Character Tomozaki OP1
Rascal Does Not Dream Of Bunny Girl Senpai OP1
Shikimori's Not Just A Cutie OP1
Engage Kiss OP1
Charlotte OP1
Watch video "The Dreaming Boy is a Realist" OP, but... [read description] online without registration, duration hours minute second in high quality. This video was added by user Excal! 26 December 2023, don't forget to share it with your friends and acquaintances, it has been viewed on our site 1,032 once and liked it 39 people.