Started Nikke yesterday

Just started Nikke yesterday guys...it's pretty much my first gacha, I've dabbled in genshin but didn't find it too interesting...I'm planning to play this game casually for the campaign, any tips for the start? Here are the nikkes I've unlocked till now

Just started Nikke yesterday guys...it's pretty much my first gacha, I've dabbled in genshin but didn't find it too interesting...I'm planning to play this game casually for the campaign, any tips for the start? Here are the nikkes I've unlocked till now