You two are killing him. This is straight up murder in the middle of the dining carriage! Is anyone witnessing this? At least he knows Taiki is just genuinely innocent here, but that smile on Yuki's face makes Inigo stare at him instead for a moment. Is this an attempt at teasing? Is this revenge for all those times he's tried to hold Yuki's hand or kiss his cheek with other people present?!

It's working anyway. Inigo's face is so red. He can't even shove another bite of food into his mouth in fear of choking all over again. These two have a way better impression of him than what he's really like, he thinks..

"Of course, I'm the biggest hero on this whole train.." But it's half-mumbled in that kind of way that makes it obvious he doesn't fully believe that, despite his attempt at bravado. "But to me the most important part of being heroic is that I can protect you two."