short explanation: Eclipse is, in simple terms???, a virus or stray few remanents of code (thought to be deleted) gone haywire and MIA. he only exists as that code, though complex, he has no processor or body in any way; he just kinda (after getting free) runs around through the Fazbear systems peeking through cameras n occasionally tampering with with stuff in small ways (oh nooooo the lights went out when u crossed the room,, oh nope theyre back on just as u reach the switch! oh wait darn theyre out again as soon as ur halfway across th room again how could that have happened)

ReaderBot accidentally 'catches' the 'virus' while working on the arcade machine Eclipse had been stuck on, and is, naturally, quite worried n freaked out but can't seem to isolate the 'virus' in order to anti-virus it out of their system. Eclipse, having been trapped, isolated, and bored for years now, is erratic and unpredictable, inadvertently messing with ReaderBot's systems at odd times n making them confused n scared. After a while, Eclipse kinda chills out a bit after realizing Readerbot is actually afraid of him, and by the time Readerbot isolates his code and can antivirus him, he's too much of a sort-of-roommate for them to go through with it. the two become friends, Readerbot grateful for someone who can actually understand them, and Eclipse ecstatic to have someone to interact with after so long alone. and yeah Eclipse definitely starts crushing on them like hardcore sorry i dont make the rules he just does that on his own

tidbits: -Eclipse can alter their sensors to 'appear' in their field of view, but only as a sort of 'illusion' only readerbot can see -Eclipse can sort of 'hear' Readerbots thoughts, and is always very upset when they are feeling anxious or down, partly bc he can't physically do much to comfort or help them; instead, in an attempt to do anything he can to cheer them up, he does,, silly stuff? like if readerbot is almost knocked over by a customer and just stands there lowkey going 'geez, some people' eclipse will appear and mime kicking the rude person in th ass skhfjsdhfjskhdf -readerbot almost gets caught reacting n 'talking' to,, nothing. like multiple times. the kids think 'oh, they have an imaginary friend! neat!' while everyone else is like squints 'staffbot,, buggy? staffbot needs debugging? maybe reset staffbot? hmm. but so much data in there,, maybe is nothing? hmmmmmmmm. better keep eye on staffbot.' -(and yea sun n moon would have some kinda feelings abt readerbot basically letting a whole entire other entity/deleted version of them live in their head rent free) -(and also yea Eclipse is the remains of a prototype Daycare Attendant that got scrapped n replaced by Sun n Moon hehe :3c this definitely causes no drama at all 100% none)

ok now doodles,