When these Constructs have their chance to kiss Nitsu.
(There is a bonus about which one of kissing type they would try next time.)
As the member of Gray Raven, Lee couldn't help but imagine Nitsu allowing him to kiss her forehead once she submits mission reports. However, he found it too embarrassing to ask her directly. Kissing Type : Breathe Kiss (Lee would try once he successfully kiss her forehead.)
As the captain of Strike Hawk, Chrome would ask Nitsu in a polite manner. If she accepts his favor, they would begin by resting their foreheads against each other and press their lips gently. Kissing Type : Earlobe Kiss (Chrome thought that her earlobe might be sensitive, just like his.)
Watanabe didn't think about it initially because Nitsu was a young girl who was saved by him. But deep down, he also wanted to show affection in a mature manner, by kissing her nape. Kissing Type : Jawline Kiss (Watanabe would love to show more affection by kissing right there.)
Kamui didn't think about it initially, just like Watanabe did. He considered Nitsu to be his best friend and Chrome's partner. Kissing on her cheek is the only option if he had the chance. Kissing Type : Shoulder Kiss (Kamui would love to try some surprises if he meets Nitsu again.)
There is no need to hesitate for Wanshi. Every time Nitsu said that she wanted to take a break from work, he would give her a kiss on the forehead and say goodnight to her. Kissing Type : Angel Kiss (Another goodnight kiss for Wanshi, he would like to say 'Sleep well' too.)
Camu didn't care about that much, all he could do was protect Nitsu from any harm. But if he had the chance, kissing her cheek would be the only option, just like Kamui had. Kissing Type : Belly Kiss (Camu noticed her exposed belly, so he would try to lift her top and kiss over there.)
Roland would make sure to take advantage of that chance. Nitsu was the only one he could show affection to, but he still kept teasing her, kissing her lips or neck, like a clown. Kissing Type : French Kiss (Roland wanted to tease her more, really passionately.)
Bonus
Dante didn't think about it initially. The fact he once lost his family haunted him so long, until Nero appeared, until the reunion between him and Vergil happened. The only option he would choose is kissing on her knuckles while patting her shoulder. Kissing Type : Nape Kiss (If everything is wrapped up in peace, Dante might try to find a chance to surprise and tease Nitsu in the Commandant office.)
Vergil didn't think about it initially as well. The fact he always obsessed with power blinded him so long, until he accepted his own humanity and found out that Nero was his son. Kissing on the top of her head might be the best first step for him. Kissing Type : Forehead Kiss (Vergil wouldn't like to show affection that much, but he might try to reassure Nitsu with this in the Commandant office.)