I bought a coffee using electronic money.

He has a black belt in karate.

The conduction band is the energy region where electrons can move freely.

He used an obimakura to adjust the obi of his kimono.

This obidome is a keepsake from my grandmother.

He stood up to put on his new belt.

He attended the ceremony of wearing an official order or decoration.

The Möbius strip is a shape in topology that has the characteristic of having only one side.

Knowing her erogenous zones is an important step to pleasing her.

She is researching about medieval chastity belts.