Your alignment may only be affected after having received your DB (Demon Buster) license in act 7.

In later acts such as the fight with Surt and the fight with Uriel, you will be asked multiple questions. You should answer accordingly with the alignment of your choice. (LAW/Chaos/Neutral.)

If you have sufficiently answered Surt's questions, you will become a chaos player, and receive an inexperienced Surt (lvl 40)

If you have Sufficiently answered Uriel's questions you will receive an inexperienced Uriel and become a LAW player. (lvl 40)

If you are between the two majot alignments, you will remain a neutral player and receive Mott.

Warning: if you have answered any of the questions incorrectly, you will not receive one of the three demons.

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Changing your alignment after having finished your acts:

If you have finished your acts, and wish to be either Chaos or LAW. There are priests in both Sohouzan, and Arcadia who are asking for donations. You may make one donation of 50k per day to the church. Using this method your alignment will slowly begin to change.