The child rewarded her care and grew to be a fine boy beyond all expectation. He was exceedingly strong and healthy; at five or six years of age he was equal in size and strength to boys of ten or twelve, and gave promise of unusual intelligence and cleverness.
Unfortunately his face was as fierce as that of a demon and he looked so truly savage and ugly that he gradually earned for himself the nickname of Oni-Waka, or Demon Youth.
In a few years his uncle thought that it was time to send the boy to school, and he accordingly sent Benkei to the monastery of Eizan and placed him under the tutorship of the famous priest Kwankei. In Japan as in England in those times all learning was in the hands of the priests, and the temples were the only schools.
When Benkei arrived at Kwankei's temple he was taught the reading and writing of Chinese characters, and as he was at first docile and diligent, and obedient to all set over him, he made rapid progress, and not only satisfied but pleased his teacher, who commended his industry; but after a time he chafed at the restraint of his new surroundings and began to give trouble. Not content with being unruly himself, he would lead the other novices away from their studies into the mountains and play all kinds of rough games with them, and, of course, being by nature much stronger and bigger than any of them, none of his companions could stand against him. It therefore happened that in every contest he invariably gained the victory, and this elated him so much that he thought of nothing but his sports and his triumphs, and, neglecting his lessons entirely, practised athletic games day after day, quite forgetting everything else.
Oni-Waka's teacher, Kwankei, hearing about the youth's wild doings, and considering them as unseemly, sent for him and told him that such behaviour not only grieved his guardians but brought disgrace upon the holy temple; but his rebuke fell upon deaf ears and did no good at all. While he was being scolded, Benkei listened respectfully enough; but as soon as the reverend teacher turned his back he would forthwith be as wild, if not wilder, than ever. His conduct grew worse and worse, till at last, losing all patience, the master priest forbade him to go out of the house, and then enforced his order by shutting him up in a monastery.
This punishment Oni-Waka deeply resented, and one night, eluding the vigilance of his gaolers, he stole out quietly, and picking up a great log of wood began to destroy everything he could. First he smashed the gateway; then the fences all round the temple; then he broke the shutters and the sliding screens inside; indeed everything he could reach, he wrecked. The bonzes, roused from their slumbers by the unexpected noise, which sounded as if a troop of robbers were at work, were all so frightened that they could do nothing to stop the whirlwind of destruction. When Oni-Waka had done all the mischief he could he felt that, after this last mad prank, the Temple of Eizan was no place for him, so he fled from the spot forever. He was now just seventeen years of age, and he called himself Musashi Bo Benkei.
Oni-Waka showed a sense of humour when he called himself Musashi Bo Benkei. In olden times there lived in Eizan a man named Musashi, who was turbulent and wild in his youth, and yet became a famous bonze and lived until the ripe age of sixty-one. Oni-Waka, having heard about this famous man, made up his mind to be like him, and therefore called himself Musashi Bo, or Musashi the Bonze. The first syllable—"Ben"—of Benkei was taken from the first character of his father's name (Bensho), and the second—"kei"—was the last syllable of his teacher's name (Kwankei). The name Benkei was therefore a combination of the names of his father and teacher.
Ashamed to return home to his uncle and aunt after his behaviour at the monastery, Benkei made up his mind to travel. This he did much after the fashion of German apprentices at about the same period in Europe. Leaving Kyoto, he came to Osaka; from Osaka he went to the province of Awa in the island of Shikoku; he then travelled all through that island, and thence wandered back to the mainland, where in the province of Harima he came at last to a monastery called Shosa. This monastery was as large as that of Eizan, and Benkei thought that he would like to stay there for a time as a student. With the consent of the abbot, Benkei was enrolled as an acolyte of this temple.
Among the numerous novices in the temple there was one named Kaien, who was nearly as fond of mischief as Benkei himself, and he was known in the neighbourhood for a troublesome fellow, no one young or old being safe from his foolish pranks. One day soon after Benkei's arrival, Kaien found the newcomer taking a nap, so for fun he wrote on Benkei's cheek the Chinese character for geta, or "clog."
When Benkei woke up and went into the courtyard he noticed that everybody he came near seemed to be laughing at him, though nobody would say why.