I think her being irresponsible is one of the reason why the reincarnator guy asked "why did you abandoned humanity" in the early chapters but ngl I think it's just because her star just doesn't want to strain her with responsibility especially with an op power especially of what happened on her pass where she lost control and almost killed her teacher so I wouldn't really call her irresponsible more like is scared of her power?and that's why she's not using it's full potential...(It's just my opinion)
And I also think she just want to live a normal life because her mom wanted her to live a normal life because she doesn't want to share the same fate as her father
I think her being irresponsible is one of the reason why the reincarnator guy asked "why did you abandoned humanity" in the early chapters but ngl I think it's just because her star just doesn't want to strain her with responsibility especially with an op power especially of what happened on her pass where she lost control and almost killed her teacher so I wouldn't really call her irresponsible more like is scared of her power?and that's why she's not using it's full potential...(It's just my opinion)