Wheremycow Hachi has probably tried to be at least cordial with Ichirou his blade has a history with the Mirumoto Swordmasters you see and it's not all bad though he hopes to add more friendship in that particular part of his legacy as wielder. They might even become friends! Hachi has no grudge with anyone, except the Scorpion Clan but Yukiko is the exception to that and her handmaidens of course, he's more wary around Scorpions but judges them on their own actions than anything.