Skill Points (SP) in Judgement (Judge Eyes). The guide includes efficient ways to earn SP and recommended methods. Use this guide when you're having trouble with SP.
Efficient Ways to Earn SP (Skill Points)
Progress Through the Story

SP can be obtained by reaching checkpoints in story missions. As you progress through the story, more places will become accessible and more things will become available to do, so start by advancing missions and earning SP.
Opportunities to Get SP During Missions

As you advance through missions, there are several places where you can get SP, such as in investigation mode or conversations. Although the amount you receive is small, you might hear special dialogue, so try to aim for them.
Complete KAMGO Missions

You can obtain SP by clearing KAMGO missions, which can be checked from the menu. You can get SP just by eating at restaurants or taking a specified number of photos, so work on them steadily.
Deepen Bonds with Friends
You can earn SP by deepening your bonds through friend events that occur at shops and hangouts around town. Friends can become powerful allies in battles and side cases, so be sure to actively pursue these.
Other Ways to Earn SP (Skill Points)
Defeat Encountered Enemies

SP can also be obtained by defeating enemies you encounter in the city. The encounter rate isn't high, but you can occasionally get cash or items to sell for cash, so fight them when you find them.
Play at Play Spots
You can earn SP by playing minigames at Play Spot facilities in the city. Depending on your score, you might also receive valuable prizes or skill books, so it's a good idea to play them.
How to Use SP (Skill Points)
Needed to Learn Skills

SP is necessary to learn skills. Skills with greater effects require more SP, so be sure to save up actively.