>>9987283 (OP)Because she is basically American Haachama.
- Both blonde and have long hair
- Both creative and strive to do something different from others
- Both thought of by others as crazy/yabai
- Both loved by basically all their co-workers despite that
- Both bad at cooking (Pomu said that she's not good at cooking)
- Both bad at games
- Both obsessed with the first letter of their name
- Both have a nickname that's slightly different than their original name (Pomu vs Pomura, Haachama vs Haato)
https://youtu.be/JvUWraKZjK4?t=5960- Both canonically have the power to clone themselves
https://youtu.be/gTPZMgQ-CRM?t=6851https://youtu.be/BBG013syul8?t=2603vs.
https://www.youtube.com/watch?v=afJEpNE-Al8https://www.youtube.com/watch?v=i_9xsmRez4Y- Both have control over technology (in-universe)
https://youtu.be/G8fAXGA5FIc?t=2728vs.
https://youtu.be/U5oL--X-WYk?t=2093- Both are actually some kind of eldritch abomination in lore
pic of
>>9987283https://www.youtube.com/watch?v=7FOB5jnb3hwVarious things said in
https://www.youtube.com/watch?v=G8fAXGA5FIcvs.
https://www.youtube.com/watch?v=bF8TesmjfTohttps://www.youtube.com/watch?v=mRCfFS0SsCkhttps://www.youtube.com/watch?v=Q3-wS69j5eU- Both weren't the original owner of their body
https://www.youtube.com/watch?v=rL9dzNIiqnQ +
https://youtu.be/gTPZMgQ-CRM?t=10194vs.
The entire COEXIST arc
- Both were dead (COEXIST lore)/ghost at one point
- Both state that Pomura/Haato is within them when questioned
- Both want to take over the world
https://youtu.be/x8Z1IQj3BIc?t=150vs.
https://www.youtube.com/watch?v=LwSgb3dmIdY- Both want everyone to become Pomu/Haachama
Become as Pomu
vs.
https://youtu.be/aEsb4wSZybo?t=19 
