4 Years.
That's how long it has been since he had left the Underworld on a journey to gain experience and explore. All in all it has been an amazing experience for him with all the people he met.
The first year after he left he spent in Asia where he met numerous people, mostly those of the Youkai Faction when he traveled through Kyoto. The Youkai Faction was led by a beautiful woman named Yasaka who was a Nine Tailed Fox and according to what he heard she was on par with an Ultimate Class Devil. Not to mention that she was also one of the most beautiful woman he had seen in his short life and couldn't help but keep the blush from appearing when he first saw her.
After he first entered her territory he was escorted to her where she asked for his name and why a Devil would be here in Kyoto.
Haru had introduced himself to her before he explained to her that he was away from home on a journey to explore the world and gain experience how other people, be they Human, Youkai, Fallen or Devil acted and lived their life. Seeing that he had eased her worries Haru asked if he could stay here for a month or two which after thinking about it for a while she accepted under the condition that he would spend some time with her daughter, Kunou who was a Nine Tailed Fox as well.
Haru wasn't against this, though he did ask why where she explained that due to her work she had very little time to spend with her much to both her and her daughter's disappointment. Haru accepted and thanked her before he was brought to a room where he could reside during his stay.
The following morning Yasaka had introduced him to her daughter who was absolutely adorable in his eyes before leaving the them alone where they spend the rest of the day either inside or outside together. Though Yasaka wasn't that trusting and kept a few guards near them at all times just incase but was happy when they reported that everything went without problems.
Two and a half months later Haru came with the news that he had stayed here long enough and it was time for him to continue his travel much to the sadness of the mother-daughter duo. Kunou, hearing that her "Onii-chan" was leaving, cried before glomping onto him, begging him to stay.
All in all it was a heartbreaking event for everyone there. Haru however got to calm her down and promised that he would visit her every now and then with Yasaka's approval of course. After that he spend the rest of the day with her and surprisingly Yasaka as well who'd had taken a break from work to spent his last time together.
After that Haru left and continued to travel around Asia, meeting a few fellow Devils every now and then and continued training himself with his Power of Destruction and making new spells.
It wasn't until the beginning of the second year when he was about to travel to Europe he met another interesting acquaintance that was none other than Grigori Leader Azazel. Haru met the man when he saw him one day sitting along the riverbed with a fishing pole trying to fish much to his amusement as there were no fish in that river as far as he knew.
Haru initiated the conversation by informing him of that fact where Azazel merely waved it off before not too long Haru joined the man and sat next to him where he introduced himself as Azazel shocking Haru and put him slightly on guard as Fallen Angels didn't have the best reputation and he onguard leader or not.
Azazel, seeing him tense quickly told him not to worry and that he wasn't going to try anything in fear of Sirzechs going after his head for attacking his little brother and he wasn't suicidal.
Haru asked how he knew of who he was where Azazel explained he heard it from some of his man in the Underworld that he had caused quite the commotion, mainly by his parents who were ready to send out multiple search parties for him. Luckily Sirzechs was able to calm them down much to his relief.
After that the two talked about numerous things, Haru found out that Azazel had a slightly more than normal interest in Sacred Gears, was cunning and less than surprising a pervert. Haru in turn gave out some information about himself, nothing too big just enough to satisfy him.
Azazel had invited him over to Grigory HQ but he had politely declined, saying that he had a schedule to keep and was needed to catch his flight to Europe but gave the man his number in case and told him to call him should he need anything from him. Azazel just nodded before telling him goodbye and continued his fishing.
The second year Haru had spent in Europe where he traveled every single country with the exception of Italy due to the fact that it was home to Rome where the Vatican lay and was in no mood to run in with either Exorcist, Priest or anything Holy.
All in all it wasn't as eventful as his first year though he somewhat enjoyed the peacefulness he had while traveling through.
He did meet two interesting people who descended from heroes. One was Arthur Pendragon, descendant of King Arthur and Morgan Le Fay and is known as Strongest Holy Sword user.
When Haru met him he found Arthur a polite and calm person. His appearance was that of a young blonde man a few years older than him with glasses.
And his sister, Le Fay Pendragon. Personality wise Le Fay was quite the opposite of her brother Arthur, whereas he was calm Le Fay was more happy and outgoing, though she did share his manners and was quite polite to him when they met. She had shoulder length blonde hair that curled inwards, she wore a witch like dress combined with a large blue hat that had a black bow on it.
All in all she looked very cute in his opinion and didn't mind telling her that, much to the amusement of Arthur as he saw his little sister blush. Haru spent a large time of his time in Europe with them as they didn't mind his presence and had Le Fay help him with designing new spells to use in combination with his Power of Destruction.
As the time passed it eventually came to where it was time to leave making Le Fay quite upset that he had to go as she enjoyed working together with him on magic spells. Haru told her he would keep in contact with the two and that if he needed help with his magic he would ask her making her smile.
The third year was spent in America and was really uneventful, unlike Europe or Asia he didn't meet anyone really interesting there. He did come across a Stray Devil every so often but most of them were easily killed with the use of his Power of Destruction and America proved to be quite a waste of time in his opinion and he decided to travel back towards Japan and check up and see how Kunou was doing and perhaps meet up with a certain crow.