Asked whether he is ready to help the housemates with the regular activities, the 27-year-old said: "Because I am a guest, I am hoping I will not have to do anything because even at home I don't do anything. I love to sleep and eat on a free day in Tokyo.
"But if I am explicitly asked to do housework, I will do it without any hesitation and won't mind doing it. I plan to teach the housemates a popular Japanese craft - origami and some sumo wrestling too as they will just have to follow my instructions."
Yamamotoyama, who recently retired from sumo wrestling after 15 years, also mentioned that he has heard about actors Salman Khan and Sanjay Dutt before, but has never seen them because he hasn't seen any Hindi movies.
"This is my first trip to India and so far the experience has been very good. The people are very kind and warm and have treated me really well. So my expectations are that the people continue to be warm and nice and accept me for what I am (a sumo wrestler).
"I have seen some parts of the fourth season of the show and I know what this show is all about. I have observed the tasks that are given to the contestants and how they execute the same. Well, I would not shy away from saying that I did not understand what they spoke, but I did observe them," Yama said.
The 601-pound or 272-kg wrestler will add zing to the finale week. However, certain changes will be made in the house to accommodate the six feet four inches tall Yama.
The dining area will be converted into a bedroom-cum-eating area for the wrestler so that he has enough space to do his daily chores. He will be provided with special placards with pictorial representations that will help him to communicate his needs to the housemates.
Yama says that entering the house will be a challenging task for him.
"I have been told by a close associate from India that 'Bigg Boss' is very big in India. I was looking forward to come to India. I wanted to see how it is like to be inside the house locked up with strangers and people from different walks of life. As a sportsman I took this as a challenge," he said.
And what about language as he faces problem in understanding any of the two languages namely Hindi or English?
"Language will definitely be a barrier. However, I will try to use actions to convey my messages to the housemates. Additionally, I am sure 'Bigg Boss' will make some special arrangements for me (he smiles)
"I am entering only as a guest. I will be myself and spend my time inside the house learning about the culture and meet new people from India. I hope they are happy to see me," he said.
Yamamotoyama will be seen joining contestants Amar Updhayay, Juhi Parmar, Mahek Chahal, Siddharth Bharadwaj and Akashdeep Saigal in "Big Boss" house Monday.
The winner will be announced next week.