Thumbs Race as Japan’s Best Sellers Go Cellular

“Love Sky,” a debut novel by a young woman named Mika, was read by 20 million people on cellphones or on computers, according to Maho no i-rando, where it was first uploaded. A tear-jerker featuring adolescent sex, rape, pregnancy and a fatal disease — the genre’s sine qua non — the novel nevertheless captured the young generation’s attitude, its verbal tics and the cellphone’s omnipresence. Republished in book form, it became the No. 1 selling novel last year and was made into a movie.