Dandelion Chocolate, H2O Chocolate Mousse & Opera [Hacienda Azul Costa Rica x Hazelnut]

Went to Dandelion Chocolate at Harajuku and the most important thing to say is, don't eat in there, because you're going to be packed among young people who don't.

That done, I would like to go back for take-out. Their signature chocolate seems to be the H2O Chocolate Mousse. I'm not sure I saw anyone else get any other cake. It's an excellent cake, though be warned that you can't expect much in the way of variation, so splitting it with a partner seems reasonable.  

The other cake I got was Opera: Hacienda Azul Costa Rica x Hazelnut. This is a tiny cake, but super rich with buttery nut layers. I'm a little uncertain on this one as well, though I ate more than half, but I'm going with excellent again.  

There are pistachio and almond version of the opera, but looking for a great cake, I should probably try a more varied cake next.