My Stepmom's Daughter Is My Ex: Volume 11 by Kyosuke Kamishiro

Being in a relationship is great, but it’s not without its difficulties—especially when you’re dating your stepbrother. We have to keep our relationship a secret, and thanks to that, people are asking us both out! But never mind that. It’s a new school year, and that means a new me. Mizuto and I have matured since middle school, and I’m sure things will go a lot better for us this time around. With our school trip to Okinawa just around the corner, we’ll have lots of opportunities to spend time together. We’ll just have to go easy on the PDA so we don’t get found out. I’m finally at the point of my life where I can have my cake and eat it too!