Is this usage of 不 before a noun acceptable? In the first episode of the Chinese-Japanese anime collaboration 一人之下, we see Zhang Chulan (张楚岚) in a classroom at his university. Just prior to this, we see a still of a university building, with a plague that appears to read (left to right) 南不海大学.

This struck me, at first glance, as an implausible combination of characters: I could not think of any reasonable reading for them. Moreover, my sense is that 不 only makes sense attached to a verb (他不说德语) or adjective (这份功课不难), unless it is attached to 是, in which case a noun can follow (这本书不是罪与罚).

Is my intuition correct, or is there actually a plausible reading for this sequence of characters?
It's just a wordplay, in the original edition, the name of the university is 南不开大学 which is derived from 南开大学 that is famous university in China.

Some people add a "不" in the name of their favouries for fun or to show their likes or respects.

I have met these nickname in social website:

李不白(if you google 李不白 you can see his poems, this guy must be a big fan of 李白, no comments for his poems XD)

令狐不冲(令狐冲)

张小忌(张无忌, sometimes they use 小)

东门吹雪(西门吹雪)