On the theory that Sunfaded uses Transparent Girl as one of its references

"Sunfaded," the new song by Hiro Shinosawa, a character from Gakuen Idolmaster, has captured the hearts of "us" who are obsessed with alternative rock, thanks to its heavily distorted three-piece sound.
Regarding this "Sunfaded," there are several points in both the song itself and its music video that suggest it was significantly influenced by Number Girl's major debut single, "Transparent Girl." These points are organized below.

The similarity that anyone can immediately spot is the sound. The strummed, distorted guitar, the relentless drums... but that is not the most crucial point.
The key of "Sunfaded" is F# Major. However, the opening guitar starts on the subdominant, Bmaj7. Because of this, the listener assumes it is B Major until they listen further (Note). Those well-versed in music theory might think it is H Lydian.
Why is it necessary to start on the subdominant? The answer is extremely simple: because "Transparent Girl" is written in B Major. To evoke the sound of the Bmaj7 chord ringing out from Hisako Tabuchi's Jazzmaster at the beginning of "Transparent Girl," "Sunfaded" begins on the subdominant Bmaj7 of F# Major.

Also, the quietness of the vocals is an important commonality. In Number Girl's first album, "SCHOOL GIRL DISTORTIONAL ADDICT," which includes "Transparent Girl," Shutoku Mukai's vocals are quiet on every track, making it difficult to understand what is being sung without a lyric sheet. While this is a recording issue rather than a choice by Mukai, Hiro Shinosawa's voice is consistently very quiet. Shinosawa's vocals, which can be aptly described as whispering, are maintained in "Sunfaded" at the very brink of being drowned out.
No matter how quiet her voice is, such a mix that pushes the limits can only be considered an intentional reference to the sound balance of "Transparent Girl."

Furthermore—this may be a stretch—but in the "Sunfaded" MV, there are manga-style panels inserted around the 20-second and 39-second marks. These appear to link to the manga featured in the "Transparent Girl" MV (0:52–1:23, etc.).

Hiro Shinosawa stands quietly alone in the middle of a scramble crossing, with the waves of people passing by in fast-forward becoming the scenery. This sight is a symbolic scene depicted repeatedly in the "Sunfaded" MV. Could these waves of people be the "friction accelerating into scenery" sung about in "Transparent Girl"? Capitalism accelerating with the desires of the people as its driving force. Amidst this, Hiro Shinosawa, who possesses a genius intellect but chooses to enjoy idol activities—which are "the least suited thing for me"—as a hobby, is the only one who can stand aloof, watching that scenery from the sidelines.

At the root of Shutoku Mukai's worldview is the "repeated impermanence of all things." Reality and afterimages repeat, memories turn into delusions, and the transparent girl disappears into the city.
However, in contrast, Hiro Shinosawa smiles and says, "Don't worry, I won't go home, see?" Wearing the red hair ornament that is part of the "Sunfaded" costume, Hiro Shinosawa reaches her finger toward the sun, leaving a fingerprint as proof of her existence.

So far, I have confirmed points where "Sunfaded" appears to be conscious of "Transparent Girl." However, it goes without saying that this work does not stop at being a mere parody but exists as an independent piece of art. I would like to express my deep respect to the creators who brought such a wonderful song into the world.

Note: According to Shimaoka harmony (though it is nonsense to apply it to rock harmonic analysis, please forgive me as that is the only analysis I can perform), a I7 chord can only progress to ii, IV, or vi, so it is unlikely that someone well-versed in theory would hear this opening and think it is Fis dur. However, theoretically, the 7th of a IV7 chord is a downward-limited resolution tone, but in this song, it is held as F#/C#, so this song is outside the scope of Shimaoka harmony anyway (as if that were a surprise).