Sometime after formation, POOHsan (プーさん)—whose real name has been forgotten to time—joins the band. At the time of his joining, his position (according to later vocalist ROB) is “guitar or bass or something.”

At the same time that POOHsan (プーさん) joins, ROB meets the band for the first time. (As he mentions that he was in his second year of highschool, this is likely in 1983.) Soon after this meeting, vocalist AKIHISA (アキヒサ) is fired due to poor ability and is replaced by ROB—per ROB's suggestion.

The band continues with this lineup until all members (who were in the same grade, despite being different ages) graduate highschool.

Note: ROB mentions that the band still had a leader at the time of his joining, so it's likely that POOHsan (プーさん) had initially joined as guitarist, since the leader of the band was bassist Araki Shinobu (荒木忍). This may or may not also mean that initial guitarist Nomoto (野本) was replaced by POOHsan (プーさん) at that time.

According to ROB, he “fires everyone except guitarist Sawai Hikaru (沢井比可流)” during this year. The order/timing of the firing(s) is unclear.

Initial guitarist Nomoto (野本) is definitely gone from the band by this time, either being replaced by POOHsan (プーさん) in the previous year, or being fired now. At any rate, the position of second guitarist is taken by new guitarist Kyouji (恭司), who is not subject to ROB's firing(s).

By the time that guitarist Kyouji (恭司) joins, but while the band's initial drummer is still present, POOHsan (プーさん) is the band's bassist. It might be that ROB fired initial bassist Araki Shinobu (荒木忍), after which POOHsan (プーさん) took over the position. Again, details are murky.

Eventually, bassist POOHsan (プーさん) and drummer Ichikawa (市川) are fired(?) by vocalist ROB, and are replaced by Maruoka HITOSHI (丸岡ヒトシ) and Ikeda Masahiko (池田政彦), respectively. Although the events leading up to it are unclear, the resultant lineup is confirmed.