what is the max level must this target angel be, so it will lose as little excess exp as possible to 0 excess exp when inheriting from this angel?

[R210496643]

what is the max level must this target angel be, so it will lose as little excess exp as possible or even better, lose 0 excess exp when inheriting from this angel? or this target angel can't be inherited from this source angel because the target angel can't lose as little excess exp as possible?

[Alkaris]

It clearly shows level 60, as it is a breakthrough level, it will not be higher.