I say no, just because their novel market is so saturated, you most likely will be drowned out by both the original and translated novels, where as here, it's mostly originals
And if you were to make the MC Japanese, it wouldn't be so hard to look up foods, religions and beliefs, history, etc. It's all online nowadays. Just be respectful about it.
Simple colors with accents (like a black background and white etching of a face with maybe a blue or yellow highlight in the hair) and a prominent title